I am in the final stages of planning my engine, I will start construction in around 2 months. One thing that has been bothering me is the carb. I know I am getting a holley carb, but how many CFM should I get. I have been told that for a nicely built 350, (300+ hp), a holley 600 would be just fine. If so, what is the purpose of putting a 750 on. Is that overcarbing? Thanks

 

I have a 750 on mine and it's great. I have great throttle response from idle all the way 5500(I think the exhaust is slowing me down or it'd keep pulling). The 750 just leaves room for improvement.

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'87 Bird 350 .060 over 700R4 + Lots more

 

YEP!


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84 Camaro ZZ4 with HOT cam. Ported Heads, Installed Larger Race-Flo Valves, RPM Air Gap Intake, and 1 3/4" SLP Headers (Best 60',Quarter Mile, MPH) (1.88, 12.91, 106.77)
Other Mods: You name it and I have probably changed it.

2001 Dodge Ram Quad Cab 5.9L 4*2

The Bowtie
ASE Certified Auto Tech
LIVE AND DIE BY THE ALMIGHTY BOWTIE!

 

I want just a very mild came, a 265 i think. does that sound right? after all i have learned about cars, i do not understand cams for ****. could someone explain it for me?

 

Picking the proper camshaft is much more improtant then picking a carb IMO. You can't go wrong with a 750cfm carb, but a 600cfm may limit you a little if you go with a long duration cam. Something around a 262 duration isn't that much, but I prefer a 750...

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1984 z28 w/ a 357 cu in. monster engine which is looking like the posterchild for Edelbrock with the exception of the Holley 750vac... all the suspension stuff... 9-bolt posi disk is in...

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