[HiFlow5 0]

To set proper preload on pedestal Mt rockers is pretty easy. Tighten the rocker bolt down by hand till its snug. Snug meaning till there's no more play between the valve stem and the roller tip. Then torque the bolts down between 18 and 24 ft/lbs. Proper torque should be achieved between 1/4 and 1 turn, but no more then one turn. When I did mine, if I could get proper preload at just under a turn I would shim it, and try to get as close to 1/4 or 1/2 turn as possible. A thick shim would represent one full turn or more. A thin shim would represent just under a full turn. It may take some time and a few try's to get everything set properly.

Just a though, but could it be an exhaust leak and not a valve train tick your hearing??? Try the rubber hose trick, and see if you can find any leaks.