no boost over 5 psi

here's my problem i just got my motor back in the car when i took it for test run it starts to buck at 5 psi on boost gauge. i check everything and recheck. all vac. lines are hook up.it rev and drive good. is there something i missing.

Put some fuel/injector cleaner in for the next two tanks. Drive it easy. This has cured my bucking problems including the last one in January. I have used B-12 cleaner and Prolong for fuel.

------------------
Terry: 88TC, 5spd, stock for now.

Run codes. Check fuel pressure under boost at WOT.

------------------
Jeff Korn

88 Turbo Coupe: Intake and exhaust mods, T3 turbo at 21 psi, forced air intercooler, water injection, bypass valve, Ranger roller cam, subframes, etc., etc.. // 86 Tbird 5.0 (original owner): intake, exhaust, valvetrain mods, 100 HP nitrous, ignition, gears, suspension, etc., etc.... // 91 Escort: Bone stock winter car // 02 Taurus Vulcan(wifes car)