Thank you for your input.
I have not seen any fault messages, nor seen any strange things with the sensors from logging. Fuel pressure may be an issue, of course. But since it pulls well under high load and revs, and O2 is good, I doubt it.
Fortuneately I can check the fuel pressure meter with the fixed meter in the engine bay to see if it dips when throttling up quickly. So I'll be sure to check it out.
Any other inputs are greatly appreciated!
