392 Hemi intake solenoid blockoff?

I don't know. The AMC guy I mentioned is running an after market engine controller that does not control the intake. He controls it with an adjustable RPM switch to control the solenoid. He's a pretty sharp dude who used to be a Chrysler mechanic and was certified as a Viper tech.

Your 2500 may be more subtle and harder to detect as it's controlled by the factory ECM.

@CurtDawg510 may chime in though he's using the Mopar install kit.