Had a question for the group... How common is it for there to be a leak in the gasket that goes between the lower housing of the fuel mixture housing and the throttle valve assembly? The reason I ask is that my car was running ok, with the exception of some issues I posted on last fall where the car would be going fine down the highway, but when I released the gas for a moment and then accellerated again, the car would just start dropping speed. It seemed as if backing off the accelerator would help a bit, but the car wouldn't go above 55, and I'd have to do some quick lane changes as everyone here in Detroit wanted to speed by... I decided a tune up couldn't hurt the situation, but then the nightmare really began - after new spark plugs/wires/cap/rotor, (taking off the two bolts and pulling up on the mixture unit to get clearance to get the distributor cap off, and the car ran like complete garbage. Couldn't go above 25. I looked and looked for any sign of a vaccum leak, disconnected wires, etc. Nothing that I could spot. I started replacing the replaced parts, with the old parts that at least would let the car run good enough to drive around town, and still the same symptoms. The car sat through the winter in the garage, and now when I went to turn it on, it won't start - unless you give it gas right away and keep it above 1000rpm. No longer does it sit at the nice fast idle, then back off after a couple minutes. You just have to kick in the gas or else it won't even be close to staying alive, and the word idle is not a part of this car's functionality any longer! If you floor the pedal, it won't go above 1000 or 2000 or wherever you have it - it just sounds starts sputtering. If you back off the accelerator a bit, it zooms up in RPM very fast. If you accellerate more gradually, it will rise, but usually sounds a bit rough in doing so...Took the plugs out - all are equally alike - dull black. I'm kind of stuck at this point that I'm not sure if I should be chasing fuel system issues, vacuum issues, distributor, etc... The obvious answer seems to be 'retrace your steps, you screwed something up', but I've gone over distributor cap wire routing, replaced the new parts with old and back again, trying to find the mysterious variable that's causing the problems, but I just seem to be getting more problems without reducing the number of variables! Any suggestions on testing vaccum, fuel pressure, or any other common Delorean troubleshooting steps for something like this are greatly appreciated... Pete Bartusek #6707