does anyone know of an aftermarket wiring harness specifically for 3 gen LT1 swaps? I'm talking NO splicing, and NO modification. just take it out of the box and plug it in.
When I see wires my brain turns around in my skull.

I'd check out Painless Wiring, I'm sure they have an LT1 harness.

Painless sells oem style harness with an extra 3 feet. So you could theoretically put the cpu in the back seat if you wanted.