Keith's valve swap

[Richard Kensicki <richk@sparta-junction.com>]

Keith
    One of the items you mentioned in your engine descriptions was that
you changed your valves from titanium to stainless. Did you do this
because of valve failure?  Did you trade off lightness for strength?
    The engine building shop that I've begun working with recommended
titanium with a 5/16 stem diameter for lightness & strength if I plan to
go over 7000 RPM.
    Anyone else want to comment?

Rich Kensicki