Thumbs up- Berryman's B12 Chemtool

[nomov8sho]

Used it on my wife's 91 Caprice 305 Throttle Body. It did a very, very good job of dissolving gunk and residue. Disclaimer- I don't know how it will perform on SHO gunk yet, but I sure plan to try it out on the next intake I pull.

-Josh