Would anyone happen to know the intake valve closeing on the XE284H? I'm at 10.9x, but i have heart shaped combustion chambered heads & FTs around .025" below, quench will be around .060-.065", not the best but not bad, Looks like if i can stay in the 70s on intake valve closeing i should be fine, maybe even in the mid-upper 60s.
75 Duster, 451 10.87 @ 123.58 NA
97 Z28 6sp., 12.01 @ 115 on a 100 shot
71 Swinger. 360 magnum. 12.58 @ 105
78 cutlass, 469 BBC. 12.70 @ 108 on street tires.
http://www.youtube.com/watch?v=Z2kqNmMfheU
