This is a small update with, hopefully, useful information.
Since the Holley EFI will be controlling the AC compressor, I wanted to use an AC pressure sensor. This is a little adapter that VA sells just for that purpose. Also pictured is a new VA dryer, where the fitting goes.
This is the AC pressure sensor that I am using. The main reason that I picked it is because I have the output configuration for it.
This is the new dryer, installed in its location on the radiator core support.
A lot of people ask me which oil pressure sensor I like to use on Gen 4 engines with Holley EFI. This is the one, and the connector on the Holley EFI harness has the correct connector. It is a 135psi sensor.
This sensor looks similar, but it has a 12mm thread on it, instead of the 16mm thread on the sensor shown above. I had this end cap for the Holley fuel rail, so I had an idea...
I told my idea to Vic and a little while later my idea was made reality.
Vic drilled and tapped the cap for the 12mm thread and a groove for the o-ring to seat against.
I installed it in the rear of the driver's side fuel rail. So I have a fuel pressure and temperature sensor after the fuel filter and this sensor in the rail, mostly because I can.
Vic is also making progress on modifying the dash insert to use with the Holley Pro-Dash.
The small hole to the right of the steering column will also get filled.
Andrew