This basically boils down to an emissions legality question. And these might be some dumb questions, but I'm new to the engine swapping thing. A friend has a recently rebuilt 350 that's free to a good home. The engine id is 3970014 - a '70-'76 350 with a 2 or 4 bolt main (guy who rebuilt it says it's a 4 bolt). It's bare bones - i.e. no smog stuff. My stock '85 305 obviously has the emissions junk. I'll be under 5,000 miles for the next inspection (PA), so that means I'm emissions exempt. Even though I'll be exempt, is there some sort of law that says I still have to have the original emissions stuff on the engine? If that's the case, will I be able to put the smog stuff on the 350 block? What all is involved with that? Sorry for the rookie questions but I'd love to take advantage of a free 350. <font color=blue>Rob 85 K5</font color=blue> 24 beers in a case, 24 hours in a day - Coincidence?