If I remember correctly, 15's on a 2 bolt 455 had slightly lower compression than 64's and small valves. The engine with 15's was 360, the HO with 64's was 370.
Zippy, I ran your same combo (with Bill Miller Alum rods) with 1.5 rockers in the late 80's in a 74 TA. Back then I had no idea how to tune a car for best performance. With a a Torker 1 and an 800 Holley DP that car was an absolute monster. (On Cam 2 gasoline)
|