349 CI on the cheap
Sure they'll work but you'll be limited on the amount of rpm's that you'll be able to turn with the engine. Because of the small port voulme, this is why I suggested the 360 heads be used on a 349 engine. If you looking for a good torque monster for the street then this would be the way that I would go also, but like I said the engine would be rpm limited with the 302 heads. Unless you have a ton of duration @ .050 but then this isn't very streetable.
I suppose you could use something like a 240-250 @ .050 with a 110 or a 112 lobe seperation and a 3500 converter and it would work. As the stroke will eat up some of the duration.