Mike, Skerlock has the bisson pitts on his. Berfore it was pumped, he had to restrict the exhaust tubes to get enough pressure to the tank. After the pump, whole different engine. Now we have a second plane at our field with a pumped 1.60 and it runs as good and it only had about 3 tanks through it when I saw it fly.
Thanks for all the great info, I'm bummed though. I was hoping at least the Slimline would fit in the cowl.