okay guys here's my problem ive been trying to find something on here for over a month that would help me find out what's causing my problem.. hoping making this post will help me out..

before i start i have a 2001 acura integra gsr
-jackson racing supercharger running 6psi... dyno-tuned
-vibrant header, magnaflow high flow cat, dc sports catback
-aem power pulley kit
-aem v2 cold air
-high flow fuel pump(255lph)
-injectors have been changed (440cc)

just purchased this car 2 months ago and been having this issue ever since.. first problem i had was no spark, changed the coil problem solved.. once that was fixed i noticed it would hesitate/misfire when getting on the gas.. changed fuel filter, cat, wires, plugs, brand new coil once again, still having the same issue.. i was messing around with it today and pulled the vaccum line off the FPR noticed when it was off motor would run like it's supposed to, put it back on and it would idle right down and almost choke out., do you guy's have any ideas what's causing this? i have no engine codes.. didnt figure it would be an o2, timings been checked supposed is good according to the mechanic i brought it to

 

Check your fuel pressure at the fuel filter and at the fuel rail, you may just have a bad FPR. 94

 

fuel filters 38... didnt check the rail yet

 

was just driving it around took off in first gear hit 4k and sounded like it was bouncing off the rev limiter