My old 440 block had trw 6 pack pistons, i ran RPM heads milled to 76cc and copper coated steel shim head gaskets. My cam was R280, 280/280 AT .050, .670/670 lift and that cleared fine. I used shims to get the comp as high as possible because the cam was too big. Mick
69 Dart GTS 440 mopar .590 cam, Edelbrock heads, 3200# best et 6.45, 106.78, 10.14, 132.88 mph, 1.47 60ft best 60ft 1.36
