15 inch steel wheel measurements

Darter6, just curious, what tire size were you able to get under an early A? I have a 66 Valiant, currently running 245/60/14's on 14x7 SBP wheels that were custom made. I clear by about 3/8" on both sides. I've considered going to LBP and 15" wheels but have been concerned clearance will become an issue.