okay so im gonna be swapping a kseries into my coupe and plan to boost it and im stuck between 2 routes. i daily my car and drive between 75-150 miles weekly and cant decide which route is safer. i currently have a z1 head off of a 06 rsx and a A3 trannys from a ep3 and cant decide if i should go with a A3 short block or A2 short block.

the turbo set up is gonna be a sidewinder manifold, 44mm wastegate, sc61 turbo (.82) vband wastegate flange and downpipe flange, wally 255, 650cc injectors. boost will be between 12-14psi

 

Off topic:
How do people acquire these odds and ins is what I don't get.

I'm referring to the motor and trans. I don't mean any disrespect I just dont get how it's done