[dlampe]

Here's why I don't think it is fuel. The weber carbs will foul 2 plugs at a time if the pressure is high because there is one needle per two barrels and the other plug is good. I have my pressure regulated with a traditional Holley low pressure set at 2.5lbs and a Kinsler bypass regulator set to 3 pounds after the carbs in the return line for extra insurance.

Rick, I don't have a spark tester. These were brand new plugs. I have had a similar problem with fouled plugs since day one but I have always thought it was just the carbs. I have been through these carbs a hundred times and I just don't think that is the problem. They don't have rubber seals that the ethanol would eat up. I guess I could switch the carbs around and see if the problem follows the carb. If it does, then they are gone! If it doesn't, what then?

The timing light flashes on both wires but when I squirt water on the header, it clearly isn't as hot as the others.