Chevy 305

How many horses do I max out of a Chevy 305, and what mods would I need to do to get the power?

How many horses can I get out of a Chevy 305. And if you know what mods would I need to do to get the most out of 305s. Thank you for your time and help. Thank you, Justin

Mix in the trash. You can spend a lot of time, much money, and get some decent power out of it. And then you can also sell, buy a 350, put 1/3rd the amount of time and money, and have a more powerful engine. The 305 is not bad. But if you want to max anything, it is not the engine to go with.

New SuperSeal SBC Chevy 305 Head Gasket 3736 Bore
New SuperSeal SBC Chevy 305 Head Gasket 3736 Bore
$16.99
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World Products 042650 Small Block Chevy 305ci S R Cast Iron Cylinder Head
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87 92 Chevy SBC 50L 305 Slotted Push Rod Holes 081 187 Cylinder Head
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78 86 Chevy SBC 50L 305 V8 416 450 Cylinder Head
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Bronze Valve Guides sb Chevy Buick Ford Pontiac V8 sbc 283 305 327 350 400
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NEW GM Chevy 305 50 Cylinder Head 194 Intake BARE CAST 96 2000
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ARP SB Chevy Small Block 305 350 Vortec Engine  Accessory Kit ARP 534 9504
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305 Small Block Chevy Cylinder Heads
$400.00
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New Small Block Chevy Rocker Arm Studs 305 327 350 400
New Small Block Chevy Rocker Arm Studs 305 327 350 400
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76 77 78 79 CHEVY CAMARO CYLINDER HEAD 8 305 120721
76 77 78 79 CHEVY CAMARO CYLINDER HEAD 8 305 120721
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77 78 79 80 81 CHEVY 10 PICKUP CYLINDER HEAD 8 305 50L 112333
77 78 79 80 81 CHEVY 10 PICKUP CYLINDER HEAD 8 305 50L 112333
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77 78 79 80 81 CHEVY 10 PICKUP CYLINDER HEAD 8 305 50L 112334
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64 69GMC CHEV SUBURBAN 305 CI CYLINDER HEAD SEE DESCRIPTION BELOW
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Valve Guides sb Chevy Ford Buick Pontiac 283 305 327 350 400 sbc Small Block
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Head Bolts Chevy 350 383 400 327 305 307 283 262 267 302 sb sbc Cylinder New Set
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Guide Plates Chevy 400 350 327 305 283 265 3 8 Push Rod Pushrod sbc sb
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Raised Guide Plates Chevy 400 350 327 305 283 265 3 8 Push Rod Pushrod sbc sb
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Valve Spring Shims Chevy 350 400 327 305 283 Cadillac 472 500 1250x812 Shim
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Valve Spring Shims Chevy 350 400 327 305 283 Cadillac 472 500 060 x 1250x812
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Valve Spring Shims Chevy 350 400 327 305 283 Cadillac 472 500 030 x 1250x812
Valve Spring Shims Chevy 350 400 327 305 283 Cadillac 472 500 030 x 1250x812
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Time Remaining: 1d 17h 48m
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Valve Spring Shims Chevy 350 400 327 305 283 Cadillac 472 500 015 x 1250x812
Valve Spring Shims Chevy 350 400 327 305 283 Cadillac 472 500 015 x 1250x812
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Time Remaining: 1d 17h 49m
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ARP Chevy 305 350 Vortec Engine  Accessory Kit Black Oxide 12 Point 534 9704
ARP Chevy 305 350 Vortec Engine Accessory Kit Black Oxide 12 Point 534 9704
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Time Remaining: 1d 18h 1m
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CHEVY PERFORMANCE 283 305 307 327 350 383 400 VALVE SPRINGS 16
CHEVY PERFORMANCE 283 305 307 327 350 383 400 VALVE SPRINGS 16
$27.99
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CHEVY 283 305 307 327 350 383 400 VALVE SPRINGS 16
CHEVY 283 305 307 327 350 383 400 VALVE SPRINGS 16
$28.50
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Chevy 305 Vortec Heads
Chevy 305 Vortec Heads
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World Products 042650 1 Small Block Chevy 305ci S R Cast Iron Cylinder Head
World Products 042650 1 Small Block Chevy 305ci S R Cast Iron Cylinder Head
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ARP SB Chevy Small Block 305 350 Vortec Engine  Accessory Kit ARP 534 9504
ARP SB Chevy Small Block 305 350 Vortec Engine Accessory Kit ARP 534 9504
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Time Remaining: 2d 15h 33m
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87 92 Camaro Firebird 50 305 4bbl TBI Center Bolt Valve Cover Bolts Retainers
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New Elgin SBC Chevy Stock Length Push rods Set of 16 305 350
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CHEVY 283 305 307 327 350 383 400 VALVE SPRINGS VALVE SEALS LOCKS KIT
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New Small Block Chevy Rocker Arm Studs 305 327 350 400
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Time Remaining: 5d 1m
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V8 SBC Chevy cylinder head 14102187 TBI 88 92 Camaro Firebird FREE SHIP 305 350
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Push Rod Set 16 sbc 283 305 327 350 Chevy GMC 62 86 Stock Replacemnt Set EPR34B
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Chevy SB 265 283 305 FERREA 5000 Stainless Intake Valves Set 8 1725+4910
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Chevy SB 265 283 305 307 FERREA 5000 Stainless Intake Valves Set 8 1840+4910
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CHEVY PERFORMANCE 283 305 307 327 350 383 400 VALVE SPRINGS 16
CHEVY PERFORMANCE 283 305 307 327 350 383 400 VALVE SPRINGS 16
$26.99
Time Remaining: 6d 3h 21m

CHEVY PERFORMANCE 283 305 307 327 350 383 400 VALVE SPRINGS 16
CHEVY PERFORMANCE 283 305 307 327 350 383 400 VALVE SPRINGS 16
$29.99
Time Remaining: 6d 3h 29m

edelbrock heads chevy 350 305 California Smog Legal
edelbrock heads chevy 350 305 California Smog Legal
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305ci 50L CHEVY cylinder head single  378450
305ci 50L CHEVY cylinder head single 378450
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1984 montecarlo ss engine 116000 miles 85 86 87 88 chevy camaro 305 corvette
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$4,999.99
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7 16 Small Block Chevy Rocker Arm Studs 305 327 350 400
7 16 Small Block Chevy Rocker Arm Studs 305 327 350 400
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Comp Cams Sbc Chevy 1250 Valve Spring Kit 500 Lift 350 383 305 Springs
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ARP Connecting Rod Bolts 1967 1994 Chevy 305 307 350 V8 Set of 16 134 6003
ARP Connecting Rod Bolts 1967 1994 Chevy 305 307 350 V8 Set of 16 134 6003
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76 95 Chevrolet 305 50L V8 STELLITE 8Exhaust Valves
76 95 Chevrolet 305 50L V8 STELLITE 8Exhaust Valves
$79.00
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76 95 Chevrolet SBC 305 50L Chrome 8Exhaust Valves
76 95 Chevrolet SBC 305 50L Chrome 8Exhaust Valves
$36.00
Time Remaining: 6d 20h 44m
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ARP SB Chevy Small Block 305 350 Vortec Engine  Accessory Kit ARP 534 9504
ARP SB Chevy Small Block 305 350 Vortec Engine Accessory Kit ARP 534 9504
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1996 2002 CHEVROLET GMC 305 50L V8 VORTEC 8EXHAUST VALVES
1996 2002 CHEVROLET GMC 305 50L V8 VORTEC 8EXHAUST VALVES
$49.95
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96 02 Chevy Vortec 305 50L Stellite 8Exhaust Valves
96 02 Chevy Vortec 305 50L Stellite 8Exhaust Valves
$80.00
Time Remaining: 6d 22h 49m
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REBUILT 305 CHEVY VORTEC HR CYLINDER HEAD 12558059 CASTING
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Time Remaining: 6d 23h 8m
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Chevy SBC V8 400 350 327 307 305 283 8Exhaust Valves
Chevy SBC V8 400 350 327 307 305 283 8Exhaust Valves
$36.00
Time Remaining: 6d 23h 9m
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Chevy BBC 396 305cc 119cc As Cast Bare Aluminum Cylinder Head
Chevy BBC 396 305cc 119cc As Cast Bare Aluminum Cylinder Head
$712.50
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Chevy 265 283 302 307 50 50L 305 57 57L 350 400 Cylinder Head Bolts Set Kit
Chevy 265 283 302 307 50 50L 305 57 57L 350 400 Cylinder Head Bolts Set Kit
$39.19
Time Remaining: 7d 13h 42m
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Chevy 265 283 305 50 50L 307 327 350 57 57L 400 ARP Intake Bolts Set Kit
Chevy 265 283 305 50 50L 307 327 350 57 57L 400 ARP Intake Bolts Set Kit
$35.70
Time Remaining: 7d 13h 51m
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87 92 ORIGINAL CHEVROLET CAMARO V8 305 50 CYLINDER HEADS  14102187
87 92 ORIGINAL CHEVROLET CAMARO V8 305 50 CYLINDER HEADS 14102187
$199.99
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Chevy 283 327 305 350 Elgin Stainless Intake Valves Set 8 202 head diam
Chevy 283 327 305 350 Elgin Stainless Intake Valves Set 8 202 head diam
$53.25
Time Remaining: 7d 16h 15m
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Chevy 305 283 327 350 ELGIN Stainless Intake Valves 194 ENGINE BUILDER BULK 48
Chevy 305 283 327 350 ELGIN Stainless Intake Valves 194 ENGINE BUILDER BULK 48
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Chevy 305 283 327 350 ELGIN Stainless Intake Valves 194 ENGINE BUILDER BULK 24
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Chevy 283 327 305 350 ELGIN Stainless Exhaust Valves Set 16 stock 491 length
Chevy 283 327 305 350 ELGIN Stainless Exhaust Valves Set 16 stock 491 length
$54.00
Time Remaining: 7d 16h 37m
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Elgin EHC99S SBC SB Small Chevy Cylinder Head Bolts 283 305 327 350 377 383 400
Elgin EHC99S SBC SB Small Chevy Cylinder Head Bolts 283 305 327 350 377 383 400
$29.98
Time Remaining: 7d 18h 37m
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88 89 90 91 92 93 94 95 CHEVY 1500 PICKUP CYLINDER HEAD 8 305 50L 77531
88 89 90 91 92 93 94 95 CHEVY 1500 PICKUP CYLINDER HEAD 8 305 50L 77531
$74.99
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88 89 90 91 92 93 94 95 CHEVY 1500 PICKUP CYLINDER HEAD 8 305 50L 77530
88 89 90 91 92 93 94 95 CHEVY 1500 PICKUP CYLINDER HEAD 8 305 50L 77530
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Chevy 305 50 76 93 Car Engine Head Bolt Set
Chevy 305 50 76 93 Car Engine Head Bolt Set
$13.77
Time Remaining: 7d 19h 5m
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Chevy 305 50 76 02 Truck Engine Head Bolt Set
Chevy 305 50 76 02 Truck Engine Head Bolt Set
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CHEVROLET 50 HEAD BOLT SET 96 01
CHEVROLET 50 HEAD BOLT SET 96 01
$35.00
Time Remaining: 7d 21h 9m
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96 97 98 99 CHEVY 1500 PICKUP CYLINDER HEAD 8 305 50L
96 97 98 99 CHEVY 1500 PICKUP CYLINDER HEAD 8 305 50L
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87 88 89 90 91 92 CHEVY CAMARO CYLINDER HEAD 8 305 50L
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$65.00
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REBUILT 305 CHEVY VORTEC CYLINDER HEAD 059 520CASTING
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$230.00
Time Remaining: 8d 16h 52m
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Edelbrock  8550 SBC 305 350 Chevy Head Bolt Kit
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$109.90
Time Remaining: 8d 19h 43m
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8 Stainless valves SB Chevy 305 327 350 400 15 Exhaust
8 Stainless valves SB Chevy 305 327 350 400 15 Exhaust
$52.96
Time Remaining: 8d 23h
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New Comp Cams Guide Plates sb Chevy 283 305 327 350 383 400 Pushrod Push Rod sbc
New Comp Cams Guide Plates sb Chevy 283 305 327 350 383 400 Pushrod Push Rod sbc
$28.99
Time Remaining: 9d 14h 28m
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