Gee no hooper sounds like what I was talking about the exactly the same. Now Walter I will answer your question later tonight when I finish work here today. For the record now. Is there such a thing as rotating valve seats yes or no. I just wondering if I have to go and find the p# for you. Now this engine is in use here in aust and is stc into another airframe and make what's a great aircraft even better.
Cheers