Lot of good advise and input, however, it still leaves me with more questions than I started with. I hear you loud and clear about the cam being oversized, but, what is the recommendation if I keep the heads? What VooDoo cam would you recommend for these heads? I can swap out cams pretty easy, but there seems to be more to making this car run like I am used to. You hit it on the head when you said that the car would not react for crap up until 25 mph or so. It does have an approx. 2200 - 2800, maybe 3000 TC in it. That alone, I am not used to and don't want. Actually, don't know why I bought an automatic to begin with. We are in agreement on the carb choice. The 750 Street Demon was my choice, but I have this Holley 4150 dp 850 sitting here. Is that too much carb. I saw dino tests on a 383 hp and between the 670, 750, 850, and 1050 the 850 was slightly better than the 750 in torque and in hp, neither carb was a dp. The 850dp runs great in my 440 but took both physics and chemistry to get it that way. It concerns me that the 383 will be even more critical with that size DP. Any experience with a HP 383 running a 850 dp? AJ, the 400 HP came from the builder, who I now have doubts about. I inherited (at auction) the machine as is where is. As for headers, I'll repeat, I don't know how they will fit. I would think that the 440 exh manifolds go into 2 1/2" pipes would help. Am I wrong on this?
