Although it was expensive, the new port job barely enlarged any of the ports, so it is very mild.  And on this engine I am going with Tracy's 2-piece seals.  Thanks Lynn.

 

Dave Leonard

 

Still, looking forward to the new ported engine with 9.7 rotors....

 

Be sure that the new porting will support the three piece seals, otherwise go to two piece or one piece seals.

 

 

Lynn E. Hanover