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10-06-2006 05:25 PM #1
CHR Member
- Join Date
- Oct 2006
- Location
- Clayton
- Posts
- 18
305 heads on posible late 60's 350
Was looking to drop in a 500 lift cam and Edelbrock Preformer and 750 carb. Worth doing?
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10-06-2006 06:34 PM #2
CHR Member
- Join Date
- Jan 2004
- Location
- Prattsville
- Car Year, Make, Model: '51 Chevy Fleetline and a Ratrod project
- Posts
- 4,990
what fuel octane you planning on running? 350 Chevy comp ratio's didn't get reasonable until 1972, and they ran with 64cc heads, I don't want to know what 58cc heads will do, I don't have any real numbers to go off of but 12.5:1 wouldn't be out of the question, well over the limit on 93 octane pump gas. 305 heads choke 350's anyway.You don't know what you've got til it's gone
Matt's 1951 Chevy Fleetline- Driver
1967 Ford Falcon- Sold
1930's styled hand built ratrod project
1974 Volkswagen Super Beetle Wolfsburg Edition- sold
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Welcome to CHR. I think that you need to hook up your vacuum advance. At part throttle when cruising you have less air and fuel in each cylinder, and the air-fuel mixture is not as densely packed...
MSD 8360 distributor vacuum advance