Totally Dissapointed!!!!!

I would let the mechanic performing the test chose his pressures and times. Aircraft engines are done at 80 PSI but that is an arbitrary standard (a/c engines typically have large bores, and low compression, also some poor guy is holding the prop still by hand). Most shop air compressors regulate out around 150 psi tops, so anticipate a number well below that. As far as time is concerned, you should be able to detect a "dead tree in the forrest" pretty quick, and tell a lot within 30 seconds. You are comparing cylinders, so just keep it the same for all eight and you'll be fine. There are professional engine builders who frequent these forums, and hopefully they will chime in.

As far as the oil pump goes, hold off. Best to confirm the basic health of your engine. A HV pump is overkill for a street engine, and your previous posts indicate you are having oil control problems, BUT lets look at the big picture for a minute. A 20 psi spread in compression is quite a lot for a new engine; and 150 psi cranking (depending on your method/equipment) seems a bit low for the cam you are running. Howz 'bout we verify the health of your basic setup, and then let's argue over the details.