Hi! I'm a new Mustanger just picked up my first one. Its a 1966. It doesn't have a transmission or motor. I have a 390 out of a 1967 Galaxie but the engine compartment looks a little tight for that motor. Any suggestions? I know that year it came with a 289 and I've been told a 302 would be awesome so if any body has one and wants to trade for the 390 I'm up for it.