I just put on my Jacobs Ignition (Finally) and Its being a pain in the ass.. at first I was preigniting and so it overheated BIG TIME... then I adjusted the timing by retarding it and it seemed to work ok but then somtimes when I put it in drive or reverse the damn thing would die.... so I adjusted the idle and the choke.. now its working ok but stil feels funny... Any Idea's? The whole damn Ign it making my Jimmy out of wack!! what the hell is wrong? I have not noticed anything different from my Accell HEI coil.. so should I take it in and have it Dyno'ed to perfection or what? By the way if any one knows where I can take it to get checked and tuned in Salt Lake City.. I'd like to know who? Any help Thanks Shane 85 Jimmy 4" Lift, 3" body bought have not installed yet, Dana 44, 14bff, 37" SSR's Yes they FIT with a 4" lift and don't rub.