I'm new to this forum but not to mustangs ... have a Mach 1 and a Bullitt in the garage. Picked up a 94 GT convertible driver off eBay with lots of miles but "ran" great. Drove 300 miles home and no problem. Trying to "clean it up" a bit I Gunked the engine and used power washer to finish the job. Since then ... problems. The scenario is that the engine will start although horribly mis-firing. After running for 10 minutes it got to sounding pretty good so I shut it off and now it won't start. If you put the gas pedal all the way to the floor it will start but immediately shut down. I've checked for water everywhere ... even running a hair dryer into distributor, and all intake related electrical fittings and still the same problem. All vacuum hoses appear to be intact. Anybody have any ideas where to look? Appreciate the help. Thanks!!