Tempest in a teapot- - - - -Stovebolt valve spring tension and cam lift rates don't qualify for all the angst a high performance double spring setup with 300 pounds of seat pressure that turns 7K RPM does.

I'll be glad to invest in some pine 2X2's and some plywood and sell you a stovebolt engine in a "crate". Maybe I could triple my prices!
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!