add a better fuel pump and now starting issues...HELP!!!

[custom e30]

i have a 1988 bmw 325i convertible, i turbocharged it, it only has the 19lb injectors in it so im not running anymore then 7psi at the moment, so just to add a extra free upgrade to my car i figured i would put a new tre performance 340 255 fuel pump in my car,
my prob is that now it take alot of cranking and gas pedal play to get it to fire up, i dont see why a 100psi fuel pump with cause the car to not wanna start so im just curios to know if anyone has any clues on this issue,

help is appreciated, thanks

[custom e30]

no help?

[deutschman]

no help?

Fuel presure regulator? I am no expert in fuel systems so I do t have much to offer. Did you have a FPR before you got a different pump? You might just be running to much fuel presure?...

[custom e30]

i have the stock one thats on the car, and 19 lb injectors