distributor shaft runout

["Lumia, John" <jlumia@ball.com>]

Listers, still in engine rebuild land.  My distributor shaft has about
.0025" of runout.  Is that alot, or should I think about replacing the
distributor drive shaft bushings?  I dont see a spec in any of the major
books, but I would guess that runout translates into a change in dwell,
and hence ignition timing.  Thanks and happy holidays.  My engine comes
back from the shop today, I basically gave him my wallet and said here,
try not to take all of it!

John Lumia -1976 TR6