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Hi, I was wondering among all the 4bbl conversions, has anybody used a 600cfm carb? If so what jet sizes would you have to use? i know 390cfm is better, but i have heard of the 600cfm being made to work just fine, with pleasing results. so what do i have to do in order to get it right? jet sizes..etc
thanks
 

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heee heee heee!

We used a 650 on a Corvair, but it was really cold-blooded, and with the cam we had, wouldn't idle below 1500 rpm. Pass on that mod, dude.
 
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