what dot tire for 15x3 rim

Get rid of the 3" and go with at least a 5" for the street. 3" are extremely bad, I have driven on them.

A 5" wheel will allow a 185-75-15 or a 195-70-15. The 185-75-15 is what many people try to squeeze on a 3".

But I guess my car did look cool back when it had meats and streamers on it. DAmn, now i want new wheels and tires. lol