Misses in third gear
 

I have a 99 4.6 Saleen Clone with a Saleen Supercharger. Recently I cleaned the motor and started the car with no problems. That was Sat... Monday I started the car and drove to work. When I am in 3,4,5th and push it down it studders or acts like it's missing out. I have driven it for a few days so, I would think if it was water it would have evaporated by now...Can anyone tell me what to look for...

Check for the easy things first, pull the plugs and check the wires. Also drive with the windows up and the radio off. Lightly press on the gas. Do you hear an electrical noise? Might be the fuel pump.

Just a couple places to start.