[ejay]

with a guy like you described i would definetly not fold the flop. He knows that by raising you prolly have a big ace and a bet here could just be him trying to win because he thinks you missed. I dont mind a raise here and if you raise and he checks the turn I might just check also and get a free card. The thing with this is, it leaves you open to a river bet from him and you have to decided if ace high is good enough for a showdown. You can also bet the trun and check the river but if you may get checkraised on the turn and then i think you have to fold.