Had a few days of with the family. Apart from going and the normal SoCal tourist tour I dropped by Planes of Fame. Interesting to study the cooling setup of the P51 and P39, since they are watercooled just as my Glasair will be.

According to specs the cooling setup of the P51 actually added thrust and that is a big difference compared to the GA aircrafts of today where cooling usally produces 30-40% of the total drag.
Bought Carmichels book on aerodynamics and drag reduction, heavy reading to say the least but if I want speed I know I need to reduce the drag of the Glasair.
American air racing has a wing/fuselage fairing and the wheel fairings from James (the RV holy cowl company) reduces some drag but apart from that it is only the cooling I can do anything about..