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I've been searching high and low for any information on the Professional Products Powerflow Fuel Pressure Regulator part # 10681 and can't seem to find anything. Anyone have any insight on these things. Apparently, they fit 1994-'95 5.0L Mustang & Cobra, 1994-'98 3.8L Mustang, 1996-'97 4.6L 2V &...

Well, my Mark has been acting up ever since I bought it several months ago and I have not been able to figure out the cause. Car is a 1994 with 178K miles. Whenever I take the engine above 3800 rpms, the engine starts popping, like its detonating or misfiring and lose power and have to let off...

Here’s my problem: At WOT when in drive, the car will shift at just 4000 rpms. When manually shifting, the car will fall flat on its face once it hits 4000 rpm and the check engine light comes on, until I shift into second gear. Once the the revs drop, the car starts accelerating hard and...

My car’s transmission shift points are messed up. It won’t automatically shift to the next gear till it climbs high in the rpm band. It shifts at around 3200 rpms despite taking off normal and easing into the throttle. When going WOT, it will shift to the next gear at just 4000 rpms, bogging...

Hello everyone, I'm Mark from Edinburg, TX. I recently purchased a 1994 White Opalescent Mark VIII for $550 as my school beater and daily driver, will post pics soon. Car is in pretty good shape for the money, some dings here and there, all in all nothing major, however the biggest flaws are...