[NealM]

Thanks for the feedback. Elevation (about sea level) is the same. Only difference in the exhaust is that I have Borla mufflers, straight through. Although this may have a slight impact the fact that the plugs are so far off must mean it's something bigger. Noted an exhaust leak after installation but corrected it with a new gasket. No leaks now.

I'll check the float levels for consistency. As I said the carbs did come off and all seem to exhibit this issue. I suspect whatever the issue is that it is consistent from carb to carb.

Keep in mind, I removed the fuel supply line, started the car and it still has excessive fuel. I'm running Champion RC9YC plugs. Looked great on the dyno after several checks.

I'll go at it this weekend.