compression test results.

I ran a compression test on my 340 this morning. Engine at operating temp, all plugs removed, Throttle wired wide open.

1 130psi
2 135psi
3 135psi
4 130psi
5 130psi
6 135psi
7 135psi
8 145psi

This is a 72 dated 340 short block. However it has a steel crank balancer on it and all my converters have been unbalanced so Im guessing it has a steel crank in it. Im not sure if early 72, 340s came with the forged crank or if they were all cast but I think the bottom end is all stock right down to the 8.5:1 pistons and stock cam.

Im also running a set of 4323345 casting heads wich were used on 1985 318 4bbls and 3604bbl police cars. I have read that the combustion chambers have been measured anywere from 74ccs to 80ccs wich is freekin huge.

Also all the plugs were clean except for 1,3 and 5 wich were black. Not sure if its oil or a jetting.

So what do you think ? Pull it, replace oil pump and check bearings ?