Stainless,
After talking to Kinsler and my engine building friend, Stu Van Dyne, the conclusion is that we could have one or both of two things. Old methanol that is in some part of the injector system that has turned into the junk we see on the top of the injector or possibly corrosion of one of the aluminum parts in our fuel system, which would only be the outlet side of our fuel filter or the barrel valve, both of which I am inspecting. I will be making an extra effort to insure that there are no areas that the fuel could stagnate in and will also be making changes to the plumbing to enable us to flush everything more easily.
The motor is at Engine Dynamics right now with our spare head being ported and over sized valves being installed and we will be ordering new pistons from J&E or CP and as long as we are doing that we intend to up the compression ratio to around 14:1 plus we are modifying our ign curve to take out a little more lead in the 12,000 to 13,000 range.
A quick note that my wife and I have made a pretty good dent in the bottle you gave me. Good stuff!
Rex