73 360 +.030 stock crank h beams with kb 107s .002 out of the hole .040 mls gasket,home ported J heads milled to closed chamber .070 I think , 2.05 intake 1.60 exhaust , crane hyd roller around 238/ 242 @ .050 108 on 104 with just under .600 lift , ported M1 intake Holley 850 dp , hooker 1.75 headers, home built with apr studs top and bottom , never on dyno but pulled great to 6500, super low maintenance nothing to do but change the oil, mud raced with over 500 passes, I would think it will fall in the 400 to 500 range somewhere