>>>*I ran some "High-tech" tests... <img src="/forums/images/graemlins/lol.gif" alt="" />... on this using a Pizza oven way back, that was interesting. Crude but it worked.

Some came up looser warm, some came up tighter. It wasn't much, the worst one changed just .0015"..

Rule of thumb is to set them cold, warm her up and double-check. Forget the posts you read about the "stiff sliding fit" etc.

A feeler guage is for measuring, so measure.

The surprise is how much actual valve action is affected by lash, tighter advances the valve openings, looser retards. You can actually affect the engine's response by a bit with valve lash, so getting them uniform is as important and getting the setting right....*EB