Oh and the only reason I wondered about the 302 cam was because if a it peaked at 3400 in a 302, 50 cubes smaller may get a 4000 rpm peak on a 248. I think this would be about right in a heavy truck. Plus $50 would be pretty cheap. Just a idea. Oh one more thing is Though it is a 3/4 ton my grand father and I swapped in a 1/2 ton front and a 3.55 posi car rear axle so it doesn't spin to hard to go 60-65.
