i have a d16z6 block with a y8 head and a z6 manifold....i'm looking into buying a skunk 2 manifold but idk which one to buy the z6 or y8 one or if there is a difference......by the way it's going into an obd1 EG if that matters at all thanks.

 

simple question why r u buying a S2 manifold it will not improve power its a waste of money