440 block, 440Source rotating assembly for 526 cubes w/10.7:1 compression, 440Source girdle, ARP2000 bolts, Indy 325 heads fully ported with oversized 2.25 intake valves. Good oil pan and pump, and a 1050 4150 carb should put you right at 10.20-10.0...We have a big B-body easily that heavy running 10.40's on little 10 slicks that way...Traction is always an issue...