Donald Mitchell
1990 C1500 5.7L
Just kidding!
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Pickup coil in the distributor. Had that problem on my 88.Not sure if it means anything but every time I mess with it, like changing iac, resetting base idle, etc it runs better while I am attempting to tune it ( I use the term loosely lol) but the problem is present again after the next short drive.
I don't know if "stage 2" refers to the throttle bar part but, here's a link for the mods which also has another link, HTH.So where do I find stage 2?
It would be nice if someone could perhaps make some a 3D velocity stack that could sit on top as opposed to removing the TBI and grinding away.