Jeff, I saw your ad on another site, looking for some C or G heads.  I have a pair of milled (.060 with the intake side also milled) Cs, the ones Ted tested in his cylinder head comparison dyno test.  They made just a few less horses than stock Gs.  You can look it up on Ted's report of the test.  They are the milled Cs with no porting.  Anyway, they can be yours for $150, I live about 45 minutes from Dayton.  They are ready to run, but probably need stronger springs for high rpm use, the ones on them are stock.

John - "The Hoosier Hurricane"