would you guys agree the carb is too rich?

No. I did a Lambda / Air Fuel Ratio calculation (Brettschneider method) for the 4 tests you ran, and got consistently lean indications: L 1.21 (A/F 17.8), L 1.19 (A/F 17.4), L 1.18 (A/F 17.4), and L 1.16 (A/F 17.0).... Login to read more.