Header flange torque specifications

[Whateverr]

Installing new Vance and Hines true duals. Shop manual calls for 120 in lb. It feels as if though I'm almost ready to ring the bolt. I have a snapon electic torque wrnech when I set it to 10 ft lbs it went off right away. Is that what most shop manuals call for 120 in lbs or 10 ft lbs? Or is my snapon gving up the fight? Thanks

 

[Breeze3at]

10 ft. lbs. is 120 inch lbs. That is the correct value for the flange nuts.
Assemble the whole system before tightening anything. Then tighten the whole system gradually, it helps alignment.

 

[Rubyred]

I wouldn't use a ft/lb torque wrench. Most wrenches aren't accurate in the first 10% of the range. An in/lb. wrench would be a lot more accurate, IMO.