Bump. Rear gear ratio,tire size.Trans automatic/stick.If automatic,what kind of torque converter.Peak lift on the heads,should be .460 to .480 lift unported.
I'll throw one in for consideration & debate. This one's built to take advantage of the larger Mopar lifters. Not too radical and 110* lobes will keep it streetable.
From what i've researched the early 300hp had a .474" and the 360hp had a .484" cam. The 300hp also had the 1.88" intake valves. Being a hyd. flat tappet i think a regulation Lunati would probably make the most power. I would look to something in this range..... http://www.summitracing.com/parts/LUN-60403/