Thanks gentlemen
Here in Denmark we actually has several US style tracks, and what a joy to race on. This one is nothing like any other

. But then again its a lot of fun to race one different layouts.
2 speed and big bore engines are not allowed in buggies. In truggy you can use variomatic if you wants and up to 11 ccm engine!
Better go with colder plug and race tune as you recommends.
Perhaps a BIIIG venturi (or no venturi at all) would be great?! I got 1800 RPM increase when I went from 6 to 8 mm on my HPI.
Werks: What´s a "rally game engine". A low budget engine?
Thanks again