welcome to the club
. which challenge(s) are you planning to attend? I will be at the Vintage Days challenge in Ohio.
Also, how are you planning on cooling your engine? I am working on an sr185, also an air cooled single, and am currently working on my cooling ductwork. I am going to use a boat bilge fan to supply the cooling air, as well as add an oil cooler.
Good luck, and I hope to see you at the challenge.