Well, 429-460's aren't really my fort'e but the last one I did was for an offroad truck: 1973 460, .030 over, mild cam, fresh valve job, dual exhaust(factory manifolds), performer intake and edelbrock 750 carb, MSD ign. and wires. It made 366 hp, but 522 ft. lbs. of torque, more than enough to turn 40" tires