<VV> Pushrod tubes that take double O-rings

[vairtec at optonline.net]

These were developed by John Frey of Connecticut, back in the 1970s.  John was an innovative thinker, and these and other ideas of his were quite clever.  John's brother, Lou, was a successful oval-track driver, primarily in Midgets back in the days before rollover bars.  That he lived to die of natural causes is a testament to his driving skill.

--Bob