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Message: <blockquote data-quote="MadStang" data-source="post: 774660" data-attributes="member: 10532">Hey guys, figure I might as well post up a thread with my Roush's issue. It's become really frustrating and I want to get this resolved asap.I have a very good idea of what is causing the issue just wanted to see your guys' opinion on the matter.What I'm experiencing is a slightly delayed startup, the car hiccups every once in awhile, no matter the engine temps, and the idle just all around is rough.Between 2k and 1k on decel, the car begins to buck... On full throttle acceleration, after I shift and get back on the throttle it hesitates BIG time. Any time I go from no throttle to light throttle while the car is moving it has a small surge. when the clutch is in the rpms hang no matter what I do. And after the car has been run hard, say I'm go from one stop light at full throttle going through the gears and come to a stop at a red light, the car just dies. Lastly when the car has less than 1/4 of a tank of gas it runs even worse...I do have an off-road h-pipe but I've had all of the above symptoms since before installing it. Only code I'm throwing is because of no cats and I don't have MIL's or a tune.I run 91 octane in the car if that makes a difference. And I've already had 1 injector fail... I went to the junkyard as a quick fix to get it back up and running. From what I understand the injectors are not balanced since they're from different vehicles (same injector of course). So I'm rebuilding the 7 injectors I took out of the jy  + the 1 bad one from the roush to hopefully resolve that issue.Next thing is the fuel filter was changed by the previous owner when the car had 52,200 mi. the car is now at 67,300 mi. Plugs are brand new. the COP's are stock.I'm starting off by changing the fuel filter and getting the injectors squared away. then get a tune for 91 and no cats. then I'm going to throwing in a sump fuel tank with twin 310lph fuel pumps (going boosted), then upgrading the fuel rails as well to handle a lot of boost. I'm just really hoping this cures the problem. I don't have a gauge to check fuel pressure, but if the injectors, filter, and tune don't solve the problem, i will invest and check where I'm at on the rails as well as at the tank...Any thoughts or opinions would be great, I just want my baby to run perfect again. thanks guys!</blockquote>