What kind of induction are you running? If you're running EFI that requires a speed signal you'll have to have the support for the electronic anyway. Might as well run the speedo to go with it.

Otherwise I'm a fan of the mechanical approach personally.


1955 1st GMC Suburban | 1954 GMC 250 trailer puller project | 1954 GMC 250 Hydra-Matic | 1954 Chevy 3100 . 1947 Chevy COE | and more...
It's true. I really don't do anything but browse the Internet looking for trouble...