Voltage issue - Gauge Cluster and wiring Questions

[greywurm]

It looks pretty tan, almost brown. I might just replace it. How do I get it in the firewall grommet? I'm out with the wife so I need to double check where exactly it goes on the inside of the cab. I was using that thread you linked for the HEI. Pretty simple. In my distributer, there wasn't an extra ground cable under the coil cap so I added one like the instructions but it didn't make a difference. Took it out for now because I couldn't get the cap back on. I think I need a differ spade jumper.

How would I know if I had an electric choke? I don't recall any wires around the carburator.