Sounds interesting and hope it goes well. Any plans or ability to take before and after pics of the valves or any way to measure the effects?Have a can of CRC Turbo and Intake Valve cleaner sitting on the shelf. Will do this next week. Thinking of routing the spray into the MAP sensor at the rear of the intake near the firewall, post intercooler.
I ordered a Depstech 3.9mm super slim endoscope to see if I can look at the valves through where the partial load ventilation (PCV check valve) line connects to the manifold (same place where my Weistec ASV pressure control line ties into). I have an older Depstech endoscope but the camera tip is over 8mm wide and won't fit in the port. Only downside to the super slim endoscope is that it only has a forward facing camera. However, Depstech does make another endoscope, the WF070DL that is a dual lens and only 5mm wide (0.2"). That might just be thin enough to fit into the port and be able to see more due to its side camera as well.
Anyhow, at some point in the next few weeks, I hope to be able to get some pics of the valves and see if they are gunked up or not.
Let us know how it goes.