Yep, beats all the plastic spacers in the world eh Brian,this lower is great as its in two halves,3 ports a side and held together by the fuel rail, gives a huge port area,no secondries,no offset injector and a bolt pattern the same as the 2.5 what a tuning aid eh..!!!!so we hog out the upper to an oval to match the lower, up to the split wall in the long/short runner,size is no prob, as big as you can hog re gaskets...great stuff...!!!
