Set the mix - got torque

Datsun's been running lean for a while, to busy (yes! finally work!) to fix it, lost a race against my neighbor's hot rod crx couple weeks ago. At least the mileage was good. Set mix today, don't know where everything's set, was just tweaking the idle screws and mix nuts etc til the flowmeter and push pins were right, so I'll have to go back and see where it's set. Took a ride, a huge difference, felt the G's pushing me back in the seat. Hope it's not too rich, don't want to foul the plugs, but didn't see any smoke.