1992 isuzu space cab

need to clean up the engine bay what can i take out and off the 2.6 so it does not run like crap but is a little cleaner

you can get a 3.2L airbox and power steering pump resevoir bracket and ditch all that airbox tubing in the front and that round airfilter. The Rodeo airbox fills up the one corner of the engine bay. all that emissions stuff should be kept as it helps the motor run well. unfortunately you should leave it all, but you can get hose coverings to clean up the hsoed that are there.