Getting impatient to hear it run before it's ready to do the cam breakin has tripped up a lot of people. Chances are you haven't done any damage, but there's absolutely no excuse for taking foolish risks. After you've built a couple of hundred engines, you'll get over your youthful exuberance. If you manage to trash a few engines in the process by making immature mistakes, that's what Dave Ramsey, the financial advisor, calls "Stupid Tax". What really hurts is to watch a mega-dollar tractor pull engine hand grenade itself on the dyno while pulling 700+ horsepower at 6500 RPM. I did that a few years ago. It had a tiny vacuum leak that overheated one piston and melted it.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!