An " upgraded" r5 p7 will be the cheapest way. I know a freshened complete motor can be had for 10k or less complete that will make 750-800 horse. It's then a matter of whatever is involved to make the extra power. Buddy of mine bought such a motor, put it in a 3000 pound car and ran 9.40's at 143 with it exactly how he bought it( for well under 10k complete) This was 12 to1 and had a dinky248/258@ 50 camshaft in it. Lots of room there to upgrade I would think. He took the heads off and had them flowed by a well known in these parts head guru and they went over 400. He ran a 4150 carb and old W2 headers he made work on it.
Last edited by B3422W5; 10/13/1503:46 PM.
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
