Hey everyone First my ? Should i go bigger . Car has champ ported GN1s , CAS sheet alum intake , 218 roller cam . 400 trans with a brake flas stall is around 3500 . Have a Turbonetics CPT65 ball bearing turbo with .63 housing , i think that has a 61mm wheel . If anyone knows chime in i guess i could call Jack . I was thinking of going up to a PT71GTQ with the .85 housing . What does anyone think of this ? Thanks