She cleaned up nicely and the new prop will be just fine. The old prop was probably worn out and not holding pitch. Good work. Good luck on your sea-trials!👍
Yes! That's right - I was able to track them down later. The vent on the port side just ahead of the cockpit has an old tube to it but just ends in the engine compartment. Might have been for an old vented loop - but the previous engine did not have a vented loop in the exhaust system.