OKAY SO I GOT A 95GSX AND THE TUBO IS BIGGER THAN A 14B BUT ITS GOT THE 34MM WASTEGATE LIKE ON A 14B , but the thing is i took the profec b out of my car cause it wouldnt let me raise or lower boost replaced it with a greddy manuel hooked up the vacum line to the nipple on the wastegate still has the same problems .....only 9-11 psi still , SO THEN I UNPLUGED the vacum line from the wastegate nipple to see if it would run 35 psi like it should with open wastegate and it only spiked 15 and 20 sometimes and when i get full throttle on it at like 4500 rpm's or 5500 its like it wants to lose boost and the car studders......but if i stay half throttle it pulls good with a little studder

now i do however still have stock exhaust with a cat converter and i was wondering if maybe that would be an issue witch i dont know why it would

but my guess is the wastegate is bad

if any1 can help me with ideas it would be greatly appreciated

also i checked for any boost leaks and i cheked it good and everything looks good NO LEAKS