gm map sensor Help

I used a un-used bung on the passenger side towards the rear of the factory intake manifold, you just twist the plastic T plug off. (Truck manifold. )
I used a piece of heavy wall black silicone vacuum line to run to the ECU.

I used a un-used bung on the passenger side towards the rear of the factory intake manifold, you just twist the plastic T plug off. (Truck manifold. )
I used a piece of heavy wall black silicone vacuum line to run to the ECU.
I have an early TBSS manifold on my build that appears to have what you describing (pass side, about 2/3 of the way towards the rear); I had no idea this would twist off and provide an additional vacuum/boost port. Is this correct?
Thanks for your input!


