Compression works out to 11.8 and that's a flat tappet cam.Sorry no flow #'s for heads.Rockers are 1.5 crane iron/ductile and K-motion dual springs.

77 Aspen R/T 60'@1.41 10.76 @ 123.26

http://www.youtube.com/watch?v=Eya3Ue8KoZk