I have an 88 GT that just doesn't want to idle right. I have replaced the IAC and the TPS and it still has a "lull" or something when it idles. It also only seems to do it after it has warmed up. When I stop at a light or something it will idle fine at first and then it will drop down like it wants to quit and come back up. Any ideas? Thanks.



Patrick

 

try drilling a 1/8" hole in your butterfly on your throttle body. i read that at stangnet.com in a section about keeping your cam from dying or stalling out.