What kind of.power can I be lookjng at with a holley Carb either a 465 or a 670.. all main ports are stovk just smoothed, bridges are lenght of.port and 6 mm.wide, ported stock s5 turbo manifold and stock s5 turbo, how much boost can I push and what kinda numbers am I gonna be able.too see

 

s5 turbo will max out at 250 wheel hp.

 

How are you going to get a S5 turbo manifold to bolt to a 12A?