TBI to Carburetor and back...

[BurbanLife]

Yesterday I purchased my long awaited project. A 1990 GMC Suburban 2wd. The engine was rebuilt recently and the original owner opted to remove the TBI and replace it with a carburetor. After carefully looking it seems as if the TBI itself was removed and a carburetor slapped in it's place. A couple manifold spacers in there and the carb doesn't seem to fit it correctly. Can I go back to the TBI or is it even worth it at this point. Oh yeah, the service engine light is on aswell. I'm guessing due to all the wiring and such still being there. Despite that hiccup the body is in phenominal shape minus a paint job.