My 85 Turbo Z was converted in a past life to a glhs style wiring and the underdash was changed to run of electronic speedo sensor in the trans. Needless to say the wiring is hacked and butchered some and some things arent working properly. I have a full running 89 Shelby T2 car thats rotted to hell but that it all seems to be in great shape electronically. So question is do pull all the 85 wiring out and swap in the 89 and make appropriate modifications. I definately need a good engine wiring harness and underdash wiring so i ate least have a motor running right and gauges that work.