Has anyone ever put an aftermarkert tach in the center hole of an A body ralley dash, without cutting it up? I know I could make the smaller 2 5/8" ones work in the plastic filler cup, but if anyone has done it before it would save ma a little work figuring it out. Is there one that is on the cheaper end that can be made to work, and can the pedistal mount types be removed from their cases, or at least have the front bezel removed? Thanks guys.