Electronic speedo?

I have one and I love it. You can do the pickup two ways, use the adapter that is a pickup that goes where the original speedometer cable once went, just buy the chevy one from Summit Racing. With this setup, provided you have the right speedometer gear you won't have to recalibrate it.

The setup I have is a Rostra magnetic pickup from dakota digital that is for aftermarket cruise control. Just mount it in the trans tunnel and ziptie some weights to your driveshaft. The speedometer then needs to be calibrated.

The calibration on Autometer speedometers is really easy so its not a concern at all. Mine is an Autometer designer black version and it works well.

Hookup is really just power, ground, lights, and a wire from the pickup...and the pickup wiring is either just the signal and ground or signal, ground, and power.

The best news is your speedometer will no longer bounce, and your odometer will be digital, and you get a trip odometer.