Kinda funny, the gun I use all the time for this is a Stanley gun that I picked up for $82 new at Walmart in a pinch one day. It said 500 or 600ft lbs and it works like a champ for me. Actually I think I was doing my first crank sensor on my Bonneville. The compressor is about a 5hp and the pressure is 150psi. I used to do this with my previous compressor that was 120psi.

Logan...I've stopped taking pics for the most part a couple of years ago. What can I say, I try and help the next guy.