both 5spd? if both are n/a it depends on the driver and transmission. autos are better for drag race but 5spd is better for everything else, i like 5spds cuz you actually drive the car.

both 5 speed and 300zx has 3 inch exhaust and how much hp would i get

honestly i don't think you would get much hp from an exhaust with n/a. so as long as you can shift smooth and get through the gears quick you should win.

k thxs and is 7mgte turbo a good engine

Very good engine, sometimes the head gasket blows tho.

Btw 300zx= crap, nissian had to put turbos in them to get them to move, also check the turbo lines at night, they'll be red hot. Nissian makes bad cooling systems.

is it hard to replace or what all you have to do toreplace it

i have no experience with head gaskets, but i think they are a weekend job + some for sure.

most people usually drive supra 7m-gte's till the head blows.

then what do they they get a 2jz

When someone blows a head gasket, they just replace it. When the 7m-gte's were mass produced the head gasket wasn't torqued enough. When they put a new head gasket in they torque it right up, almost making it impossible to blow the head gasket.

Personally i'd take a supra over a 300zx anyday, way nicer IMO.

what makes it torkey and srry for asking so many ? just bought my supra