what size carb

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71scamp78

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Ok guys I building at 412 stroker and will be a street strip car. Going to be running a 3.55 gear . Engine will be 450 plus hp with the steel heads from Brian at IMM and will have a roller cam not sure of specs yet. The carb I have right now is a 715 cfm holley vacuum secondaries. Will it be big enough I'm thinking I need a bigger one. My carb was built by Promax in Indianapolis so not sure of exact specs but ran great on my 400 hp 360. It needs rebuilt so before I have that done should I upgrade
 

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Did you ask Brian this question, can't go wrong there too. How much street vs strip?
 
What do I know..... I ran an 850 on my 346 and it took all of it lol. Definitely bigger than your 715 you have now.
 
I have a Bigs 950hp on my 414 cu. in. and it works great. Check with Jesse at Bigs Performance. Phone 715-835-3726
 
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