After stripping most of down in bed if truck, i have more info. Its not a vette motor, its an f body, as all accessories are on right side, also its a 94, as the optispark has the small drive.. confusion came from ( i believe) fuel.rail, which is a vette rail. Im still happy... also looks like the stand alone harness was a it of a hack job.... will all be sorted before i even open the hood of the jag.....