I finally got my fuel injectors out, and found that, I had a piece of linkage not connected. Which would explain my huge power lose in my engine. Anyways

What should I use to clean my uim, and should I replace the lim gasket as well? I have the gaskets and 1 injector. Should I also replace the others?

ALWAYS replace the gaskets. Replace any injector that is faulty.

Sounds like your IMRC busings need replacing.

B12 works great.

Steve