Wideband

4 Speed makes thing a lot easier, no converter drag down.

The chart above is for boosted applications.

As mentioned, use it as a tool to find what the engine likes. I have a 340 with the 528 cam and it won't idle at 14.7 or close. It liked best at 13.7ish range. Fool around with the idle and see what it likes. Highest vacuum reading is a good spot to start from. May want a smidge richer, lower vac number to help tip in and cover some acc pump lag.

Cruise anything higher than 14.5 is good.

WOT 12.0-13.0 is a typical range. Some engines are close to 12, others closer to 13. Another, let the engine tell you. You won't likely hurt the engine if it's in this range to start and begin fine tuning. Highest MPH at the track is the best confirmation for WOT AF numbers.