Looking good Ed. I was over Bill's place in Potomac MD last Monday his 550 is now up and running. He's done some really slick mods to add more cool air from the grills toward the engine. Basically he designed sort of a wing under his puller fan that's attached under the grills with SS sip ties. It pulls the air in then blows it on the wing which then moves it to the engine and carbs. Also built in the wing is his oil cooler which receives the fan air as well. It works really well and when kicked in without the motor running sounds like a turbo-jet. You gotta see it. Unfortunately I've got a pretty good oil leak going since my engine pull in July not sure where it's coming from but every time I drive it I'm cleaning up oil. So I have to take the engine out again what a pain. Makes me think about doing something similar with a smaller fan under the spare wheel. I like the look of having the spare. Bill is not using his.