Was it bench bled properly was my thought also. Are you running a prop valve? I know they can trip and give you grief. On the wheel issue, I'm not sure how much clearance you need, but, mine were so close on my 58 that they rub UNTIL you tighten them down all the way. Then they have maybe an ⅛" clearance, maybe. You can use a grinder on the calipers if it's just an RCH, or run spacers? OR use it as an excuse to go get a new set of wheels and tires...
