Just recently my 87' 2 liter Mighty Max started to idle really high while in neutral. I'm going to check timing this weekend, but before then i'm looking at probable problems causing this issue. I've adjusted the carburetor in every way possible and all it will do is bring the idle up even more from its already ridiculously high idle but i't won/t bring idle down to a normal speed. I've checked for vacuum leaks and can't seem to find any. Anyone ever have this problem?