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?

95 SES Sold 99 SE Sport Sold 99 SVT T-Red Tan Interior. K&N, Magnecors, 19' Theorys, And some audio stuff.