after installing both ways i decided to leave the plate below the spacer but i agree both ways would work one post were a guy ran it both ways said no difference in power plugs were a little richer when it was on the bottom another guy said with it on top it gives the n20 and fuel more ime to atomize that one realy made me think but i went with the nos techs advice and put it right on top of the intake the victor intake has a lot of rise i dont think puddling will be an issue. i think top or bottom is 6 of one half dozen of the other. time will tell.