Hey guys, i am polishing my old intake manifold..i was wondering if i polish the holes out as well and make it smoother if it will add a performance difference, or if i should take a dremel and open it up a wee bit, ifso how much? has anyone done this?? thanks -Dennis , 91 Classic w/ Primera Swap Eibach, Tokiko , JWT, Place Racing, Pace Setter, Sony, Kenwood www.geocities.com/sr20deswap/