I don't remember the Elgin part number offhand, but they list it as a "290 degree" duration. That's incorrect, as they're including the clearance ramps in the advertised duration. Actual "valve open" time is around 260 degrees or so if I'm remembering the degree job I did on John's cam correctly.
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!