It depends on what MPH you want to run and if you want more street than strip.
The Billet PTE62/65 could put you in the high 9's on a dialed in GN so I wouldn't go bigger than that. This turbo is a slight power upgrade with better spool than the old PT67/76 so if you want less than that, the Billet 62/62 or 60/62 might be your winners.