I don't know about UT, but as far as I know in CA the ARB (Air Resource Board) won't let you do it -> smog regulations
If you haven't had to have any emissions testing or inspections done on it there; I'd say to go for it.EvilNerd said:well I'm not talking replacing a 85 318 with an 82 318 or something I'm talking replacing a '91 4banger with a 70's 360 =P