MC,
I have a Brillelli 46GT I will use for power. It is a great running engine and will spin a Bambula 21x10 at 7000RPM so I should have plenty of power.
Sorry to here you have to wait for the retracts from Robart.[&o] I have the Century Jet retracts in my P-40 and they work great. I called Century Jet and their model 32199 retracts fit this Zero. I will be ordering my Century Jet retracts from RCOnly becasue Barry can get then at a better price than if I order them myself.