Good advice!
Anybody ever wonder WHY the 20-minute fast idle to break in a cam? It's simple lubrication! A lot of oil slings off the crankshaft/rods during the fast idle time, and keeps the cam lobes flooded with oil. Since the cam & lifters are the only part of the engine that runs without any clearance during normal operation, it's essential that they get lots of oil while they're establishing a running fit between the parts. This is the same reason that a cam and lifters which have been run for any length of time must be kept in the correct order if they're removed. Running a lifter in a different position after it's been run-in on a lobe makes it reestablish a different wear pattern, and usually results in a flat lobe. I've got a cam in the shop right now with less than 1,000 miles on it, with one flat lobe, and noticeable wear on some others. The owner didn't have the engine tuned properly before the first startup, and idled it for some time while tinkering with ignition timing, etc. Now he needs a new cam and lifters.
Jerry
