i havent finished mine yet but im going to be running a mitsubishi TE04H turbo with an internal wastegate. im going to stay at about 5-7 psi probably.
i will be running stock internals for now. i plan on getting a second engine to rebuild with stronger internals though.
engine management is one of the 2 things that have kept me from finishing it. i would also like to know what the few others are running.