I have a thunder racing custom comp cams grind, it's 230 intake 236 exhaust, .510 I/ .520 E lift, ground on a 112 It has 4500 miles on it. I bought it used and never got a chance to install it. The guy I got it from ran a best pass of 11.71 with ported stock heads, ported intake, 52mm TB, and longtubes on drag radials in a 94 trans am. It is for an lt1 so it has the long pin in the front, but can be used in 87-95 SBC with hydraulic roller. $175 shipped OBO