R3W7 Assembly

After lots of measuring.....I determined that I need a lot of reduction in spring installed height. That's due to the fairly low lift (.650-ish) and long valves. I didn't want to use a bunch of shims so I made some @ .185" thick; there will be only the one shim and the spring locator under the valve spring. This will leave me with .070" spring bind clearance, which seems to be the optimal value for my setup. spring seat shim.jpg