Do stock unported 1968-71 340 heads flow about the same as the Big block 906 Heads? Thank you. Through the stock mani, they flow very similar which is why the 68-70 340 has almost the same NHRA HP factor as the 68-69 383. Isnt the factory weight of the car the motor comes in a consideration as well when factoring?
69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight 418 BPE factory replacement headed stroker, 565 lift solid cam Best so far, low 10.30’s 1/4 1.41 best 60 foot 6.56 at 104.17
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