Iowa Chapter Director
Join Date: Jul 2002
Location: Ames, Iowa
the 3.8 IAC is a bit cheaper. I've actually got one right here if you want it. I upgraded to the 5.0 60mm tb and have that IAC. But try cleaning it first. It's located on top of the throttle body, unbolt the two bolts, spray some carb cleaner in the iac and clean it out with a rag as best you can, and clean the mounting plate on the throttle body too, bolt it on and see if that helps.
1988 Notch Mustang: - 438W, direct port n2o, t56
2003 SVT Focus: - SCT X3 tuner