if you don't know that the miata is rwd you shouldn't look at swapping a motor.
the klze is a probe/mx6 motor, both cars are fwd.

with that being said why are you looking at swapping the motor? what year is your miata, what are your main goals (hp,drag,drift,autox)? manual or auto transmission? there is alot of info you should give that will help us to help you. welcome to the board and remember we're here to help