Thanks guys! I'm wondering if maybe I should do a 3-3/8" tach offset to the top of the opening, then in cresent shape of the spacer below it put in LED indicator lighting. I'm really not sure what's going to be the best option here! I need LED warning lights, but I'd like a 160mph speedo too, and I'd like to get a tach in there. I guess I want more than the holes I have to fill! The idea of that big 4.5" tach is awesome, but I only found very few 2 1/16 speedos, and that was digital readout or Auto Meter....
Jason