I purchased a z7 kit from another member on this forum , finally get everything on the car and the turbo smokes really bad ,( yes i have a oil restrictor ). We think its a blown turbo seal. So im looking into a t67 from stattama, i have a 5 bolt flange. Exhaust piping is 2.5" , that being said would a T67 be to much ? My support mods are : st3 cam , zzp stage 3 heads , hv3 , 80lb injectors , fuel logs , powerlogs ect. If a t67 is alittle to big what turbo would you suggest ? Thanks -tyler