Got new cyls from Kurt, and KNS inlet set. After some milling and head (mine) scratching have to ask.
Did valve stems to fit orig retainers, don't know yet if they can do. Will they crack?.. Anyhow, assembled them by this: put heads on without gasket, just snugly to see if in-valve meets head. In start did. Several times re-do and grinding the pocket where touched.. Finally no contact. Put copper-gasket between and crancked. No sound or feel of contact.
Will this be enough? Didn't modify pockets otherwise. Just put engine to roll?