Quick question for Roush kit installers

[Perna00]

I bought a used Roush Kit (2019 5.0 Mustang) and I’m about 2/3 of the way in the install. I’ve got a brass barbed fitting on the top of the lower intake manifold that sits just under the fuel rail area on the passenger side. I’ve found no reference to it in the instructions. It looks like a 1/4”-3/8” barb. Can anyone help me out?

Sponsored

 

[Perna00]

In case someone else comes across this post… the stock Roush lower manifold have a tapped port with a plug. It can be removed and an aftermarket fitting can be installed (like mine was) for optional sensors or signals for accessories like a boost gauge. Tread out and plug for back to OEM.