Spoke to late model today my boost gauge pod was on back order should be out hopefully tomorrow or Thursday . They received my balancer and are inspecting a new one and sending it to me today . Those guys are top notch over there
I had the same issue you are having on top of I also had a hanging idle with. that old motor I had and I could never cure it , changed intake gaskets and manifolds etc I got the whistle gone but couldn't get it to ever idle right ever
I gotcha when I was first starting on my car I need se rust repair done and the guy quoted me to fix minor rust issues and por15 the engine bay for 4k I was blown away by that
no it's like a paint that after the spots are treated won't let it come back and it also makes the car look nice and clean underneath . I have no rot the car is clean I just want to be preventative and clean it up