Doug, I hope Bill told you about velocity stacks, too. If you add a velocity stack (only from Horizon, $6.75) and a Bru-line filter, you will nearly eliminate all the oil on your firewall. I never had a messier bird than the Saito 82a on the Twist. I wasn't getting great flight times, either. Well, the velocity stack keeps the fuel in the carb, not blown back on the firewall, with consequent improvement in fuel consumption. The velocity stack fits neatly over the carb, easy to install, and adding the filter also helps keep the fuel, clean, in the carb, not on the firewall or elsewhere.

Try it. And the velocity stack also fits the 1.0 Saito and maybe the 120 and 125, I can't recall.

J