Roller Rockers for Buick/Rover and a Buick 300 head question

["James J." <m1garand@speakeasy.net>]

Does anyone have any contact info for makers of Roller Rockers for the 
BOPR 215 family?  T&D used to make them, but I can no longer find their 
web-page.  Kenne-Bell used to, but now all their web-page shows is Ford 
parts.  Any thoughts?
JJJ

p.s.  Does anyone know if the Iron Buick 300 heads were cast from the 
same molds as the aluminum ones?  I ask because I'd like to section up a 
pair of 300 heads to definitively determine how much metal can be 
removed in a porting job, but I'd hate to do it to the expensive 
aluminum heads.  The iron ones pop up for cheap all the time.  If they 
are dimensionaly identical (internaly), I can hack a set of those up and 
still sleep at night.....

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