>> because I don't think that sticking your finger in and probing around is conclusive in any way.

Exactly what I was told.

>> the gains that people see <not> due to porting.

To be clear, I&#39;m no rotary guy, I&#39;m not accusing anyone or even suggesting the fast guys cheat. From what I&#39;ve seen the fastest car are all VERY well prepared. You&#39;d see beaters running up front if it was that easy to make them fast. I&#39;m just throwing the info out there for general consumption.

If a whole group knows they have an engine that has an easy HP bump available and that is very hard to police, you know there are those that will take advantage. Similar to the 2L problem we have in ITB with VW Golf mk2s. Crank are $200 on Ebay. It&#39;s just too easy. This is why I was crying for tear downs earlier in the year.