ok I'm not new to third gen's by a long shot .But have a wiring harness question on a 1987 V6 can the ECM harness be made to work with a 1987 TPI. I realize everything else involved motor mounts exhaust radiator trans springs etc I have tons of parts laying around I work at a major salvage. Igot this very slick firebird for almost free so its just time involved. I believe that it can be done using the correct ecm 1227165 and modding the harness

 

i beileve it can be done too, but i cant try until next year