Compression test only at 90 psi max, timing chain off?

zig said
I used KB hyper. stock '73 340 block, stock rods, crank, pushrods, comp camXE274 with new lifters, j heads with valve job and 2.02 intake valves put in. Air gap intake, rebuilt thermoquad... Nothing to crazy...

Even un run you should have more cranking psi than that.

I run those same pistons with an int closing of like 52 and have about 155-160psi fwiw