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Wondering if anyone can tell me what the following hook up is intended for on a FAST 102 LSXR intake? On the passenger side. Looks like a 7/16 molded in nipple. Also, are there any adapters that I can purchase that will fit on there and allow me ultimately connect to a 3/8 hose barb?
My intent with this inlet is to hook it to my catch can. To provide the vacuum to the catch can.
That is the vacuum port and it should go to those valley covers with the integrated PCV valve but if your venting to atmosphere via breather cans off of the valve covers then that port can be closed off. Now if your plans are to run PCV and you do not have the valley cover with the built in PCV valve then you can still run to a sealed catch can from the driver side valve cover through the can and from the can to the vacuum port of the intake. As for the passenger valve cover if it only has one port that's up front it should be connected to the port on the throttle body and if no port then into the air duct between the MAF and throttle body. It would help to see more pictures of your setup!
Last edited by 01CamaroSSTx; Mar 14, 2021 at 07:28 PM.
That is the vacuum port and it should go to those valley covers with the integrated PCV valve but if your venting to atmosphere via breather cans off of the valve covers then that port can be closed off. Now if your plans are to run PCV and you do not have the valley cover with the built in PCV valve then you can still run to a sealed catch can from the driver side valve cover through the can and from the can to the vacuum port of the intake. As for the passenger valve cover if it only has one port that's up front it should be connected to the port on the throttle body and if no port then into the air duct between the MAF and throttle body. It would help to see more pictures of your setup!
More on my set up:
I’m running a Mighty Mouse catch can set up. Have the valve cover breather port on drivers side, and valley cover port T’d together, and then running off to the dirty side of the catch can. Clean side of catch can running to the intake via the port shown in first pic of this thread. Fresh air line from my air intake tube to the passenger side valve cover.
No EVAP. The Mighty Mouse catch can as the PCV. Using the FAST vacuum port on the drivers side to run a manifold pressure reference line to my fuel pressure regulator.
I was hoping someone made an adapter that bolts right onto that FAST drivers side port. But I was playing with it last night and a 3/8 line will push right onto that thing. I’m sure with a clamp it will never pop off. So I guess problem solved.
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FAST 102 intake hook ups and adapters 
