How much boost does a 3.30 make on a whipple 2.9 through stock manifolds and full catted exhaust (bassani)? RR doesnt make a 3.5 pulley thats why im asking.
my 2.3 makes 11psi with the 3.5" pully and full exhaust
I would guess yours will be around 15-17psi with the 2.9. also intake size/TB the extras mater too.