good question, I wish the gorilla who tightened my right front had this info. She's not budging up to 150 ft-lbs...
I beleive the recommended torque for those relatively soft lug bolts is 72 lbs.ft. I did mine to 75 lbs.ft. I am running 355 wheels and bolts on a 348.
That is right - I replaced a few rusty wheel bolts a month ago, called Daniel at Ricambi and he told me the book called for 72lbs. so that is what I used..
Manual says 72lbs but mine were always coming loose, so I set my torque wrench to 80lbs, problem solved. -R
Idiots! LOL, don't believe those clowns. Ask them if they are going to drill out the broken bolts after they shear. I'd stay in the '70's if I were u, but I'm a '70's kind of guy. Rock on dudes!