I guess I am confused. What are you saying the H/P increase was at the rear wheels with the addition of the New Manifolds? What do you truely accreadit this increase to? Isn't the pressure eaqual whether it has a small or a large manifold? Is the size of the tubes from the super charger bigger? And lastly would you expect performance increases with these manifolds if one didn't change the pulley for the S/P?
Thank you,
Mike Loftus