[S1965C]

Do you have adjustable air bleeds for the idle circuit? Maybe you need to introduce more air to overcome those pig rich 84's and lean out the lower rpms? Possibly some similar tuning for the transition circuit, too? Me personally, I'd try to get the car happier at idle and up to 1,800-2,000 rpm first (install an A/F meter) or take it to a dyno. What's your idle vacuum reading? Your PVs might be bleeding open too soon. My $0.02.