i have a '85 with a 2.8/carb in it. the current engine is on its way out. it begining to smoke and burns some oil. i picked up a 86 for 90$ with a 2.8/TBI and it runs strong with good power. what do i need to salvage to convert the 86 2.8TBIto run in a 85 body. is it worth it? or can I change out the carb for the TBI on the 86 engine using the the 85 manifold? i dont know much about fuel injection systems.