Like DVW said, I'm interested to see if the crank passes the mag test.
The pickup needs to be a lot closer to the bottom of the pan.
Plastigage for checking clearances isn't even close. All it does is tell you if you have clearance or not, lol. Get a 2"-3" micrometer and a dial bore gauge.

Those Milodon sandwich plates aren't known for flowing real good. Not saying that's your issue, but I'd look into other options like using a Milodon cover on top of that HV pump.


CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax