I am once again asking for your advice.

I have a 2000 crown vic. My fuel pump went out on the highway, I swapped it out alomg with the fuel filter. But upon trying to drive it home it refuses to go into high rpm. I can hit highway speeds if I'm on a flat or downhill grade, and I can cruise for hours with no issues at all. In park I can carefully get it to high rpm (above 2k) if I ease the throttle. But if I go aggressive at all, the car bogs down untill I let the throttle relax. I've replaced the MAF, the TPS and confirmed my PCV is functioning. I have also repaired a large vacuum leak from the back of the throttle body. What else could be giving me this issue? Thank you!