Just came across this thread,- my first thought was incorrect/blown power valve. But you stated that carbs were spot on, so I read every post. Amazed at what I have learnt from this thread. Thanks for posting and giving final results.
^^^It's amazing what I've learned from this thread too! It has been a real education. I know a LOT more about flatheads now. I knew this whole flathead thing was going to be a steep learning curve. Just glad for guys on the HAMB who really know their stuff and are willing to share their knowledge. Andy