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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 &...

I feel like the engine is running out of fuel as well. I got a high pressure 255LPH Walboro along with a new fuel filter, but like you said, the connections may be causing the problem, or maybe a twisted fuel line, or the suction strainer. I need to check for all of that. Quick note: when I...

*runs outside, opens car door, checks speedo, runs back inside* 178,004 miles. Its a little higher than its suppose to be since my speedo is off about 10 mph at 80. Car is actually traveling at about 70 mph while it reads 80 on the speedo.

Update: Link to video now posted. Sorry for the delay, the weather has been pretty severe. . Notice how on the first run, it pops maniacally above 4K rpms, and I have to let off the accelerator. :( On the third run, it pops once right at 3500 rpms, then over 4K it just goes wild and I let...

Premium 93 Octane, Exxon brand. I'ved never ran the 87 or 89 stuff since Premium is recomended for these cars. Might try out Shell, see how it responds to that. I have no idea what the previous owner ran for 175K miles though. Something tells me he probably ran the cheapest gasoline in town...

I'll do some WOT runs tonight, in a closed course in Mexico... I'll upload the vids to youtube and post them up here. Does sound very similar to your problem. I would've never thought about checking the sock filter. I'll check the fuel pressure see if for some reason the engine is not...

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...

Any updates? Its been almost six months. :confused:

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...

Thanks for the responses guys. That sounds very much to what my car is doing. Forgot to mention on my initial post that I used the old tranny's VSS because the new transmission is from a low mile 1998 Grand Marquis which I snatched from a local salvage yard for $250. :D Thats right, I did my...

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...