what is the normal idle speed for our motors,500 rpm's?.mine idles at about 700-750 rpm's.i have an accufab t/b.when i put it on i did not adjust the minimum air screw.i am trying to set my tps ant is is way off.if i adjust to bring the rpm's down this will help get me closer to the correct voltage i need to be at.

 

When I put my Accufab on my 01L 3 years ago, I didn't touch anything on it - idled around 650-700rpm in neutral. My TPS was about .94 v - I then adjusted it to about .98-.99v - still idles around 650rpm in "D". I would not mess with the air screw adj on the throttle until you adjust the TPS and see where your idle speed is then.