I searched and found the belt to use when not using a air pump delete pulley is a 986K6.

However, for some reason I can not find anyone in my area that has this belt. My options are a 98" or a 99" long belt.

Will it matter which one I use? I have never run without the air pump before so I was not sure which is better. My thought is the tensioner will be able to compensate for either length so it wouldnt matter. Just wanted to get other opinions before I do it.

 

I am almost positive that I used the 98" belt on my smog delete setup. The belt number that is called for says its 96.8", but the part number they give gave me a 98" belt if memory serves me correctly. I think you should be ok...just make sure you get the 98" not anything longer.