not really too sure on the idle, lifters wouldnt have anything to do with it but hte plugs if bad would…best bang for the buck on 3s’s would be ground controls, here’s mine with a 2 inch drop
not really too sure on the idle, lifters wouldnt have anything to do with it but hte plugs if bad would…best bang for the buck on 3s’s would be ground controls, here’s mine with a 2 inch drop