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Congrats Greg!
Glad to hear it all worked out.
I thought you were going to tow it to SDAC!

I might have missed that. I wouldn't set it higher than 65 psi.
But, I would change your injectors out back to the 52 #/hr (+40's), and start with a base fuel pressure of about 32-33 psi. That...

For the short term Greg you might want to consider increasing your fuel pressure a bit. Try adding another 3psi.
Reset your ecu adaptives, and try that at WOT. It should be better. And you could...

Good point. Maybe something skewing the reference voltage?

You might want to try logging map volts, and trying to get readings with a mityvac vacuum pump at the highest vacuum it can achieve for reference.
Also try getting a map volt reading at 29.2 psi...