1972 Plymouth Valiant 4door

that planned 360 swap is a good start - that car with a stock V8 was probably good for 14's - and that would have been a 318 - there are plenty of ways to get into the 12's - I suggest a good Mopar performance book or two - do some homework - you'll get so many opinions and options here your head will spin - no, I mean literally.. LOL