Set of cleaned up Eddie heads. Cam and rockers for 600 or so gross lift, mild 240 ish@50 flat tappet cam and a nice 750 carb and your there. It would get well into the12's with a different convertor.
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
