Ecu question

I just put in my klze, the ecu that was given to me with the motor is for the enuos 800 (KL62). Do you think that the KL62 with the j-spec maf would run better then the a-spec setup. I have talked to the place that I bought the motor from and they said that as soon as the real ecu comes in, I will get it. I'm just wondering what would work better for now.