time to start thinking about which engine for kfss. have 3300 sitting in shop but would get 912 if was much better choice. hot in arkansas and wondering if cooling the 3300 would be an issue. and reports arent overwhelming about performance with 3300. any one running a 3300 and what prop and prop dia are you using. dont see why i cant run a 70 inch prop on the 3300. what is the prop dia that the 912 guys are running on the series 7 and the ss. is the jab performance less because it is being run with shorter props. keith