Yeah i wasn't sure if resistance was building up somewhere or just breaking down.Not sure. There are a lot of quirks in the electrical system of these cars and the hotter it gets the more restrictive it is to pass the current. Kinda like when you heat up a magnet enough, it is no longer magnetic until it cools down.
It hasnt died yet and done that.I have autometer pro-comp gauges in the center air vents and below. We unhooked the stock gauge..That ticking noise does not sound good at all. Do you know how hot your engine is because your needle looks dead.
My buddy jeff who works at SVT and owns a speed shop thinks it might be the aftermarket IAC..