I had a truck just like yours with a 1971 429 out of a T-Bird. I had D0VE heads, the block bored .030 and decked with flat top pistons. Double roller chain, L&L fenderwell headers with 3" Flow Master mufflers. Edlebrock intake with a 750 Holley. I called Comp Cams and they recommended a cam that worked well. I used 4.56 gears with 39" tires and lockers in both ends. I ended up getting custom drive shafts for front and rear, if I got some good traction I couldn't keep stock shafts in it. The truck ran very well.