has anyone removed all the smog and emissions crap from under the hood for good? is it hard to do and have it still run good with the computer?

 

on what typ of vehicle, and what exactly do you mean by smog and emissions crap?

 

'89 f250....I was referring to the air pump and all the hoses that cover the top of the engine.

 

I have a '93 F-250 with a 351/AOD. My cat is gone and a bearing in my air pump went out about a month ago. I bought a shorter belt temporarliy and removed the pump to match it to a replacement. (Which of course had to be ordered.) During that time my truck ran beautifully with no "check engine" light or any signs of a problem. Mind you my hoses were still there, but they were just tied to the fender and left open for a few days. I don't know if this will help you or not, but it's worth a shot.