Not sure what to do with these, installing different intake manifolds and new vf3's. The reeds have a raised section and the manifolds are flat. It doesn't seem like the gaskets that came with them will seal at all, they just catch the edge of the raised part and are the same thickness. I was thinking if I cut my own and made them come all the way in with a hole in the middle close to the center hole they would seal up. Any thoughts or suggestions? What are thoughts on reed spacers, had some on there before, keep em or lose them?