Thanks...I can breath easier now!! And no this is not something I do all the time. Just did a couple of times to help blow out the crap build up using regular gas! Now that I put premium in it it appears to be running pretty good! Thanks again,
revving your engine, whether in gear or not, is not a good way to "blow out crap", if you would like to clean your valves and injectors, use a good quality fuel injector cleaner every 3k miles. otherwise you can run seafoam directly into your combustion chambers.
and yes, as said, revving under no load is an extremely bad idea, wastes fuel and is obnoxious.