Good morning folks, I am in the process of changing a few things including installing a Pro Flo 4 fuel injection system on my Rb 440, the engine is bored 40 thousandth and has 9.5 to one flat top TRW pistons. It has a Comp Cam Hydrolic Flat Tappet 21-670-4, which is 474 in and 474 exhaust, it has Comp lifters CCA-867-16 with Crane Roller Rockers. This motor did 445 hp on the dyno, 450 trq. @ 5500rpms when it fell on it's face. I have just purchased Edelbrock Performer heads and I'm wondering...
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