Jay I would like for you to talk with Larry about the adjusters. He will work with us to get them right and solve any problems. What exactly are they doing when you say they are breaking? Are they backing off and then breaking or just loosing up? Do you think a dab of loc-tite would help keep the nut tight. This is the same adjuster but with out the Elephant foot that we have on all of the T&D rockers and they give us no problem. Don't give up on the adjusters untill we talk with Larry about any ideals he may have. Your camshaft is on the extreme side when it comes to duration @ .050 for sure. Do you think you need that much duration with a head that flows that well? I will let Larry know about the adjuster issue that you had and have him give you a call if that is ok.