[kajitani]

dont nickel and dime your power, save your money until you can make it count. the Z2 is pretty close to the K20A3, follow some K20A3 builds for guidance, like this one.

http://www.k20a.org/forum/showthread.php?t=66643

 

[kajitani]

A K20Z3 puts down in the neighborhood of 170 whp..

I suppose you could swap the head and tune it like this guy

https://www.youtube.com/watch?v=jEFXI57nmLo

Don't know how he's getting 200 whp stock A3 block with an A2 head. I have a Z3 making 215 but with a full exhaust, RRC with 70mm TB and port match.

There is a user by the name of Chunky, he's done a lot with an A3

 

[kajitani]

I would get flashpro, never heard of unichip