both mafs don’t make a difference for the get go since both will cap you off at around 250-260hp, this is when you can get the maxima N60 maf for aiming more than 260hp and if you really wanna push more power like over 350hp, go N62 300ZX maf which is capable of over 500hp.
but you’ll need an upgraded clutch, better you install that now with the engine already out instead of after once u get a turbo installed…guaranteed.