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577 Posts
Well, after MONTHS of trying to fix the running problem (gone through 2 distributors, and 2 carbs), I have been told I need a new carburetor. Right now I have a 600cfm Holley 4bbl. This carb, so I have been told, has a possible internal vacuum leak, and causes the idle to be erratic while in drive at a stop light.
This is the 2nd Holley to be on this engine, and both have been terrible. The first one leaked, even after a rebuild.
The engine is the factory 351 bored 0.30 over, with rebuilt heads, a mild grind cam (wish I could find the spec sheet), Edelbrock performer intake (4bbl setup instead of the factory 2bbl), and the Holley 600cfm carb. I was told that I may be over carbed, and therefore should look for a 550 cfm carb. I do NOT want to buy Holley, as my experience has been terrible, so I ask what brand of carburetor should I be looking into? I have never heard anything good about Edelbrock either, so I would like to avoid that as well.
This is the 2nd Holley to be on this engine, and both have been terrible. The first one leaked, even after a rebuild.
The engine is the factory 351 bored 0.30 over, with rebuilt heads, a mild grind cam (wish I could find the spec sheet), Edelbrock performer intake (4bbl setup instead of the factory 2bbl), and the Holley 600cfm carb. I was told that I may be over carbed, and therefore should look for a 550 cfm carb. I do NOT want to buy Holley, as my experience has been terrible, so I ask what brand of carburetor should I be looking into? I have never heard anything good about Edelbrock either, so I would like to avoid that as well.