I actually use a high pressure tank on mine and still get 2k off a 68/4500. Dwell settings depend on what board you are using as well as what solenoid you have. for humphrey noids I usually have mine set between 10-12 on the MAC noids it has to be set around 16-18 I think.
In my experience the best thing to do is get it shooting consistent with the lowest settings you can. For this you are going to need a chronograph.
Originally Posted by Chappy
Aggroman saves the day!
Now he's goin' street ridin'!