I have a 93 GT that I'm trying to get ready to sell. It's been sitting in my garage and has not been driven hardly at all outside of starting it up and driving it around the block just to knock some dust off. Saturday, I finished a tune up (plugs, wires, cap and rotor). Car starts up fine, takes a minute to warm up before it'll idle on it's own. Took it out for a test drive and everything is fine up until between 2500 and 3000 rpm. The car just won't go... acts like it's tied to a tree and really struggles to climb the rpms from 3000 on. I'm at a loss. I was having the problem before the tune up... decided to try the easy inexpensive fix first and it did not solve the problem. Here are a few things done to the car before I noticed the problem: New clutch and flywheel New u-joint New starter The car does have an MSD ignition box and coil on it. I'm wondering if it's gone bad The car also has a battery drain issue, but I don' think that would relate to this issue I'm having Old plugs did seem to have quite a bit of gas on them outside of maybe 1 or 2? Could it be bad gas? The gas left in the tank is obviously old. Could this be a timing issue? Lastly, I thought I read about a similar problem on here one time and somebody recommended replacing the TFI. Any help would be greatly appreciated. Thanks!