John also has the 13:1 compression pistons (AND COMBO) which allow them to be able to go so lean that they run cooler. I was a hairs breadth away from ordering a set this time for my engine build. I'm not sure if I have the compatible cam and I know I don't have the right ignition setup right now either. I'm confident I could put my dual Webers back on rejet and get near35 mpg with my rig if I took the roof rack off. I've got the super beetle 3.88 r&p, but I have a tight 1.14 4th gear. May I say the Quaife diff is sublime
