I need some help I bought a 1992 GMC Sonoma GT with a LT1 conversion started in it the V6 and computer were sold before I bought truck. I know they make a harness to do the swap, but I need truck up and running before I can afford one of those. So I need to wire the LT1 harness in the factory harness to get all the gauges to work in the truck does any one have info about this swap?