[Jac Mac]

Purely out of interest, I have read back thru some of your older posts & how you deal with this 'emission' problem. Do you still use the Power Valve's or have you disabled that circuit. seems to me with that manifold that you might be able to get a lower idle HC count by doing so and reworking the carbs to suit. Manifold vacuum must be real low and erratic with being a large common plenum.