I was finishing up my engine mods and everything went together perfect until I get to the upper intake. I have tall valve covers and my throttle body hits them and I have a 1 inch manifold spacer. I must eliminate a 1/4 inch gap between my TFS upper and lower intake manifold. The only thing I can think of would be to find a different tb adapter besides trick flow, if it would fit; or to put another spacer in there, which I would rather not do.