Small block combo suggestions

Getting the math to work out is a good thing.... I sure don't ignore it. Figuring out why this case is so far off is a good exercise on improving knowledge IMHO.

The .022" lash is larger than the .015" lift used for advertised duration for this particular cam. So that explains part, and the 298 makes sense, but the final cranking pressure number is still pretty far off in this case. The math worked out well within 10 psi for our last build.....

Cam ramp shape with a very slow ramp around the lash point? Total Seal rings? Rhodes lifters being used a solids LOL? Reeealy goofy valvetrain geometry? Bad compression gauge?