Originally Posted by Chad1Sable
Is it also recommended to get a new manifold or enlarge the holes on the stock one? I read that you have to drill the body to get the full effect of the mod. I was just wondering if the manifold needs more flow as well.
more flow through the manifold would help, but the manifold is not the constriction point to the solenoid. You will benifit more from drilling out the solenoid supply hole on the body than messing with the manifold.