i got a l67 motor and box out of a vx for a conversion into my vs s3 ute i have got a loom out of a vs l67 model and i have got a vs supercharged memcal (185kw)can i use the vx box in the ute or will i need to take out the bigger converter and put it into the vs box that im using now also is it safe to use a 12psi pulley on a standard motor????