340 oil galley plugs

There are a few more....
1. One at the back of the driver's side lifter gallery just in front of the distributor shaft. This one being missing drops overall oil pressure a bunch.
2. One or 2 in the block right above where the oil pump outlet hole goes up throuhg the #5 main bearing cap and up into the block; this one forces the oil to go over into the filter. Without it, the filter is bypassed but it does not lower oil pressure. The anti-drain-back feature of the oil filter is defeated if this plug is missing and each startup has delayed oil pressure build-up.

FYI, the oil after the filter goes up into the passenger side lifter gallery; that is the main supply line to all the mains, rods, cam, and rockers. It then passes across the #1 main bearing (where those 3 small holes come together above the #1 main bearing shell in the main saddle) and then feed into the driver's side lifter gallery.

What was the oil pressure while all of this was going on? Please specify hot or cold, oil weight, and if running at 2000RPM or higher, or at idle.