GMPP Vortec cast iron heads and a mild cam, .432/.453 lift, 250 and 258 degrees duration. 350 ci with dished top pistons. 2 1/2" dual exhaust with "H" pipe and Flowmaster Super 40 mufflers. So the motor isn't anything radical just a little more torque down low. Its no big deal but I never had a near stock engine that I couldn't dial in a little better than this. It runs great but its just running a little richer than I think it should. I ordered a Holley regulator with a mounting bracket and a pressure gauge with a hose barb fitting for it. After the pressure is set I'll probably remove the gauge. It just bothers me not to have it just right.
