Mark Steitle wrote:

 

>"...What I can say is that I picked up 20+ knots on the top end over the original side-port 20b motor".

 

That is outstanding Mark!  I'd almost bet that your PP modification was one of the "easiest" ways to gain those hp numbers vs. a turbo / supercharger add on?  Probably wouldn't seem like it as you were going through the "tweaking" phase, etc... :)

 

Doug