I went to 15.5 to 1 compression using custom Diamond pistons with a dome shape to match the Indy 440-1 heads. Makes good HP at 976hp...


67 Cuda 8.48@ 158.7 mph 1.18 60' 2,600 DA(so far...) 70 Super Bee 440 Six Pack 4-speed. 13.2 @ 104 Stock exhaust/Street tires.