I'm far from being a mechanic, but wouldn't spraying TB cleaner into your intake system be a relatively bad thing? First, you are loosening the gunk in the intake and feeding it down into your combustion chambers. Then you're going to try to exhaust it out? Also, if I recall, TB cleaner is some highly flammable/explosive stuff, worse than ether. And I know that spraying ether into the combustion chambers is like taking a sledghammer to your pistons.
I couldn't see doing any of this with the manifold still on the car...
I plan on taking off my upper intake either this Sunday or next weekend. I'd rather have it off the car to really get inside and let the stuff soak. Plus, I can inspect the rest of the engine top as well.
