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I already did a search. :wink: :? What will a Proform main body on my 4777 Holley do to make it better than my 3310?? I have some "issues" with my 60 foot time. Thanks in advance. :D My search resulted in some conflicting information. If this is too vague, go ahead and tell me to buy a "real" carb. :lol: :lol:
 

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itll bump it up a 100+cfm or so ,which will make some extra power.
ive got the same one here and it comes with larger main jets too.
settin it up for my dads car it says 870cfm on the package.
a friend has one on his sbf and it helped the et's a couple tenths
john
 

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Thanks,

Thanks John, that's where the conflicting info is arising. 870 cfm would be right around what I'm looking for. But if it only bumps my 650 up to 750, it won't be worth it. If it bumps my 650 up to 800+, I'll try it. I know there is a difference in baseplates too, so I need to check into that also. I tried to call Quick Fuel yesterday and got their answering machine. You know how it is when you're chomping at the bit to make a change. :twisted: I'll try them again.
 
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