Hey guys, I could use a little wisdom on my project. I started breaking down my 1964 k181 and found some good and bad. The good is the cylinder walls are smooth and unscored. The bad is the exhaust valve is stuck open and the intake valve appears to have significant rust pitting but the exhaust valve and piston look great. Any recommendations for freeing up thee exhaust valve and should I replace the intake valve or both valves? Has anyone else seen an intake valve rust but the other components in the chamber be fine? Thanks for any suggestions.