Nothing Helps! Getting frustrated

[86GT]

Originally posted by 302 LX Eric
Second, you may want to try to clean the 10-pin connectors located just behind the upper intake (a black one and a white one) and then putting some dielectrical grease on the contacts. I've seen several posts about this fixing surging and high idles. It's worth a try and doesn't cost much.

This may just cure it!!! I worked for me before I went to a carb and now have a smooth idle with any cam I want. I'd clean the 10pin connectors, if you do an intake/cam swap, it'll be easier to get to them.

Also, check the wiring in general for fraying or bad connections/grounds. Usually if the car is running, most people overlook it, and sometimes that's the culprit. Look at the freebie stuff first then get into the parts. Hope that helps.