I've seen at least one post recently which speaks of a
combination of hotter cams, S1 heads, S&S carbs, and
SE slip-on mufflers.  It seems this is about like putting 
together a $10,000 stereo system with $100 speakers. From
what I've read from several sources, the SE slip-ons are 
okay for anything with 883 sized valves, but don't really
even flow well enough for a stock 1200 with its larger
valves, stock cam, and CV carb.  I'd be willing to bet
that stock 1200 with nothing more than an SE air filter,
SuperTrapp (or Bartels 2-stage) 2:1 exhaust, and appropriate
rejetting, would at least equal any combination of parts 
trying to push gas through the restrictive SE slip-ons.
--
L. Maurice Riggins                 e-mail: lriggins@engr.udayton.edu
Engineering Computing and          http://www.engr.udayton.edu/staff/lriggins
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