Tony,
That is excellent information, thanks.
To get back to my question: why did you choose to use hardened seats, rather than hardened valves? Please note that when I say hardened valves (also sometimes called "no-lead valves"), I am not referring to stock stainless valves.
My post referred to an article written by Jim Richardson in the Classic Auto Restorer Magazine. It says that in order to fix the bad gas/no lead problem which you described so well, you can do one of two things:
1) Put in hardened valve seats (which you did)
OR
2) Put in hardened valves, which is cheaper, and his recommended solution.
Everyone I know, like yourself, chooses number 1, and I'm wondering why this is.
Ed
