fuel pressure 1300PSI - should I worry?

Ah, you think you have enough but, there's the volume issue you'll hit PDQ if you big turbo. Watch the pressure drop like a plummet if you do that.

I never saw lean AFRs, even when the pump struggled. The computer just opened the pulsewidths to make up the differnence. That was apparently semi-ok (though I do feel it was still giving up significant top end power), until I added a RP to my downpipe and that was that. misfiring, stutter, etc. over 5K.

I look forward to PtP getting a move on and sending my internals so, I can restore my peace of mind.
 
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