be thinking abit of what something like this would go on my setup ? its at a great price and im really thinking of upgrading the GTK to this ?

Precision PT6765SP

T3 .63 or .83 A/R V-Band (4-bolt or 5-bolt available, please specify upon ordering)
Compressor Wheel: Inducer 2.620" (67mm) Exducer 3.310" (84mm)
Ported S-compressor cover (.70ar)
capable of 770 hp