Then he wrote this after I said WTF??:

"Y8 is OBD-2, your car is 92-95 model which were all OBD-1. 96 and newer were OBD-2. 2001 and newer began the OBD-2b. The engine mounts are interchangeable. But are definitely different. You have to swap them out to fit the engine in. Axles are different too. You have to swap the whole wiring harness from your engine onto the Y8 engine for it to work. Your A/C system is r12, from 94 and newer it was 134a. Thats why your system won't work. The piping is different"

His he right?