[Christ]

Wouldja try some Seafoam first?

I already know what the inside of my intake looks like, from having the upper plenum off once on the 4.9, but only running on 5 cylinders won't let any cleaners do their jobs correctly. :\

I won't want to pull the plenum again until I actually have to once I put the 6 new injectors in, so short of an inspection camera, which I can't really afford right now, I won't be able to figure how effective the cleaning really was.