x2 on at least a 62mm turbo. Honestly I feel a 64mm would be best. I say this because my s300 with a 57mm wheel at 45psi is't enough. And the set up I run is similar to yours.

 

i have the same problems with my truck the quadzillla up on leve 3+ and the vgt turbo spooling so quickly i cant shift fast enough. and thats if the tires are sticking to the ground half the time up until 4th gear the tires break free no atter what and the rev goes straight to 3 be fore you can get your foot out of it. basicly the quadzilla plus a vgt turbo and a manual tranny equals cannot floor your truck because of the snappy power.

 

thats awesome

 

it is when your write it, but it sucks having all that power and not being able to go fast! now you put a trailer on my truck going up hill and well its hard to discribe the awsome feeling. but then the best part is when your done you turn down the program and let that vgt just whistle its *** off!