I am over thinking and over researching this, I have read everything I could find on this and it always comes down to keep the stock carb set up or go the the aftermarket 600-650 option. It looks like the 625 CFM Street Demon is the way I will be going. If I had just ordered it when I started...
I have a 69 RR 383 .30 over purple cam stock exhaust manifolds 906 heads. It has a worn out 1406 Edlebrock I believe too small not great throttle response and poor performance. I am looking at a Holley 625 cfm Street Demon or 750 cfm Street Demon. The 625 should be plenty but I have read many...
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