Darin,
IF the pump is like the 12 valve engines pump, it is quite easy to shim it. IF your engine has been built a little bit "looser" you might experience a slight decrease in oil pressure.
What is your oil pressure at 3000 rpm? IS it within the factory spec? If not, and you are relatively certain that more bearing clearance has contributed to this, then try to shim it slightly. Place a couple small thin washers behind the spring. .030-.045" total thickness is probably a good place to start. You dont want to much shim as you will bind the spring up. That little bit will probably net around 10-12 psi at 3000 rpm.
I realize this may not be the politically correct, or the most trick way to boost oil pressure, but it will work.
__________
bbp, did you get the oil temp resolved? Mine doesn't run nearly that high temps even here in Florida. I usually see 240-250 oil temps. (12 valve car)..If you need a hand, I'll email my temp fix. kinda lengthy and includes diagram..
Jim
ITA240
#23 SEDIV