I have a set of rocket 350 heads.  They have about 3000 miles on them.  I
had a three angle valve job done, spring spacers, new rocker arm pivots,
etc.  No porting.  The rocker arm pivots allow for individual lifter
adjustment.  much stronger than the stock aluminum pieces.  I also have an
edlebrock aluminum intake manifold.  I forget the model number.
Interested?  Let me know.

Mike