Hello there

I am swapping a 1989 L98 and trans into a 1987 Z28. I am having issues with the donor harness which by itself is chopped up but just in the fan area. What are the other things i should look out for? I know that the chasis connector does not exist on a 1989 do i have to rewire for that or does the bulkhead connector take care of that. I have deleted the Vats out of the prom.

Thanks