[alanwoodieman]

just took apart an 8ba today, nasty mess, valves are the hardest part about tearing one down, they do require a special tool to pull out the valve keepers and a couple of special tools to remove the valve/guide assemble after removal of the keepers, keep a can of pb blaster and keep soaking the valve guide from the top down if you can rotate the engine that helps a whole lot as you can spray down the valve chamber as the valve opens--