Hey Del!
I should have been more precise. Yes its a BB. I think mechanical on the oil and temp. I used aftermarket wiring harness so the alternator is one wire and the ammeter now measures volts (gutted and spliced in volt meter), hence the reasoning for having a set of gauges with numbers.
I agree with this, but I have gone down the path of having a stock dash and I like the look. Having a cluster off to the side will be period to the build. If you have a car with that I would love to see where you placed the cluster, style of the gauges and hookup scenario.