Excellent info that backs up the videos and articles I've been studying.

That is a HUGE amount of low to mid lift flow!!
Right in the sweet spots of where the cam sees it twice each cycle with dramatic increase in avg. #'s.

How many hours does this type of quality valve job take you?
How about the time for blending after the cutting is done?
Do you use cutters or stones?
Did you do any deshrouding in the chamber after the larger valve was installed?