I'm thinking of getting an Autometter guage pod, but I cant find a 2-1/16 or 2-5/8 electric gauge for them. Does anybody know where to get one.

 

Meche, Autometer sells the tach you are looking for. I believe the size you want is 2 5/8". They've got many to choose from and the quality is second to none. I've had their tach. and gauge pod for two years and I'm very happy with the set-up.