No pro but the pro's told me to start WAY tighter on the back lash as it loosens up till it sets and I set my 8 3/4 up w/about .005-.006 and it's nice n quiet.......... thumbs

Last edited by Thumperdart; 06/12/18 06:30 PM.
72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....