Dropping fuel pressure at WOT

[BluHoe96]

Well its either the pump or the regulator (which is in the manifold and part of the spider). Either one sucks to replace.

Don't think its the regulator. i didn't post pics or video, but when I originally checked the pressure and we were at 60 psi I experienced a rise about a lb. a minute. This was after shut off. Then the pressure held for a good five minutes at until i depressurized. Kosher for the fpr no?