cv6 monaro supercharged 3.8l v6

hi guys i have a 2002 cv6 monaro and have been told i can put a blow-off valve on it, does anyone know if this is true and what type and also i want to boost the supercharger so i have been told if i put a smaller wheel on the end of the supercharger it will make it better so does anyone know a place in melbourne, vic where i can get this done? if so can you e-mail me at [email protected] and let me know. thanx :smokin:

A blow of valve on a monaro!! ha!
you can get fake ones on ebay!
they sounds similar and are pretty cheap.