On www.johnsperformance.com they have a hot wire kit for the 89 TTA and a hotwire kit for the buick grand national. Now I have a 1991 Pontiac Firebird but the engine is a 87 GN. I have a walbro 340 fuel pump as well but the wiring harness I got was the caspers wiring harness for the 89 TTA they make for 86-87 GN engine swaps. So I am kinda confused here on what I need to get. The 89 TTA hot wire kit or the GN hot wire kit. Thanks.