Okay so here's the deal. I have a 97 mustang gt. 137k miles and leaking. So I just found a low mile, cheap, 94 mark 8 engine and want to swap it . The thing is, that engine is obd1 i believe, and my car is obd2. Is this swap possible within emissions? If so, what do I have to do to make it work? I live in Mass btw, fairly strick emissions testing.