As "Nitty" as this may sound, i call the flop (not fold it).
Really, the only two hands calling a flop push you are beating are AxKs and AQ and A4, all the others ur completely fucked.
If you call the flop, hands like KsK and KsQ and random stupid bluffs are going to commit themselves to a c/r on the turn in which they don't fold any of their range. Obv, were folding a spade turn.