Hello all I am having some trouble with my 1990 Gt with a mild 5.0 and 5speed. About a week ago my car started acting up. Idle surges, high idle up to 1900, sputtering upon take off and acceleration. And it's running very rich. I cleaned the MAF and it still does the same thing. But it's mostly after around 25-35 minutes of driving depending on how many times I have to stop. When I took off from a red light the other day it acted like it was going to stall and sounded like it had a 2 step. It was barely moving, but when it finally reached 2000 rpm it took off. This is normally a pretty quick car. Please let me know if anyone has had this issue and found a cure. Thanks for reading.