Agreed. How fast do you want to go and how deep are your pockets is a big key. I think 500whp on pump gas is a doable task for either choice the 700s or 3071s. 91 oct not so much but 93 with a good tune I think the 700s would be capable of that goal as well. May need upgraded cams possibly where the 3071s could do it with out upgrading the cams but again it all comes down the deepness of your pockets and if spending the extra money would be worth it. Turbo selection comes down to a few things. Budget being number 1. Horsepower goal 2nd, driving or racing style third. 530s great all around street turbo with say road racing in mind. 700s street,road race,drag racing come to mind, 3071s some street and mainly drag racing come to mind unless all breather mods are on the car.
2006 Chevy Cobalt SS super charged (Daily driver/Gas saver) 1994 Nissan 300zx sport 700 Twin Turbo (Weekend car) www.SVZA.NET
