"...TRW pistons w/ moly rings, Summit 2802 cam, Rhoads lifters, Crower 68404-16 springs, ARP hardware, FelPro complete engine gasket kit, Edelbrock performer intake, and the FiTech EFI kit. Would this move my compression into the mid 9's as recommended?..."
The static compression ratio is calculated using the numbers required to use the Wallace CR calculator. The ACTUAL numbers of the engine, AS ASSEMBLED, will determine the static compression.
Now, if you don't think you have enuff compression, and want more, you can go with one of the "steep ramp" cams. The most popular are the CC XE series & the Lunati Voodoo series. These cams are said to increase cylinder pressure & power. Many say the XE cams make noise because of the way they slam the valves shut.
The Voodoo lobes close the valves more gently, eliminating the noise. These cams are recommended for the low compression engines. Once you get up to 9:1 & over, then using one of these cams MIGHT get you into the detonation range, with low octane gas. If you decide to try a Voodoo, a 262 might work. But don't use Rhoads lifters with it. The Crower Cam Saver lifters might give a little insurance, since they splash a little extra oil on the cam lobes.
Well, can't get the Jegs link to work. But they have the best price I've seen for these lifters. Summit will probably match or beat it, if you prefer to order from them.
If you're going with the 2802/Rhoads, it might be good insurance to go with the "Super Lube" version.
"...Would a factory spec Melling oil pump be suggested or is it encouraged to use a HV/HP pump?..."
The Melling M54DS is the most popular Pontiac pump. This is what I've always used. For 455's, I always shimmed the relief spring slightly, to increase pressure just a bit. But, for 400's, most recommend using the spring they come with. This is supposed to provide near 60psi.
