It has the stock jetting and power valves and my idle vacuum is 9-10. With my handy dandy wideband 02 meter I've set my idle mixture for 14.0 to 14.5 AFR. But when I go off idle whether free reving the engine or while driving, the AFR goes way rich, 10.9 to 11.9. I'm going to try dropping the primary jetting to see if I can lean it out. My WOT AFR seems right on so if I lean out the front say 2 jet sizes, am I right in assuming that I need to raise the secondaries by the same amount to keep the same WOT AFR? Assuming my PV's aren't opening, is there anything else I can do to lean out the part throttle AFR other than main jetting?