""With the bigger jets and CLEANER air bleeds, the A/F ratios are MUCH better.
Idle in park: 13.0 to 13.8
Idle in gear: 12.8 to 13.5
In gear Pwr brake 12.0 to 12.9.""

- That is a much better starting point. Now you can take it for a drive and take note of your A/F readings at 30mph/40mph/50mph/60mph or what ever you choose. These A/F readings will help you tune your transition and your jetting for cruising.