Sounds like a plan. Making sense now. The vacuum gauge is a mechanical gauge and works fine. I also like vacuum gauges on n/a engines. The narrowband looks like it was stuck in to fill space and never hooked up. Both are very off-brand and inexpensive pieces.
The NST crank pulley was left on, but the rest were gone.
The NST crank pulley was left on, but the rest were gone.