i have a 1995 Cobra with a 306, stock GT40s, stock 1.7's , stock cobra upper and lower, stock 24lbs, pro M mass air, E303 cam, and FR Long tube headers. i took it to get it dyno'd and tuned last summer at a local mustang shop. so i had to buy a SCT 4 blank chip. anyways i got it tuned and we could never get it to idle correctly, the guy told me that it would be this for a couple days until the computer learned the tune.:??it ran really good and was a lot faster than when i took it there, just no idle) i took it back a week later and still no good idle. you cant take your foot off the pedal for more than 5 sec without it dying. i gave up on that tuning place and just tried retiming it and resetting my TPS and replacing sensors. still didnt help. this went on for about a year. i was getting so fed up with this car so last week i just took the chip out and it idles perfectly. but now the throttle response and the pick up just sucks. my car isnt as loud as it was when i had the chip in. and my buddies i would race and beat are now beating me. i need help on what to do now. idk if i could of had a faulty sct chip or the guy that tuned it didnt know what he was doing. anyone on here use an anderson PMS tuner for a 94-95? anything would help thanks!