I'm old school so I'm a 14.7-5 a/f ratio guy. The cool thing you have is you can adjust the a/f along with the timing for that sweet spot. At WOT I would be looking for around a 12.7 a/f and with reduced timing under load. By no means am I a even a amateur tuner so I am just relaying basic's that I still remember. Please keep us updated because your breakdown could help us learn.
Another thing I almost forgot was running dual WB's (one for each bank of cylinders), just an after thought.
Another thing I almost forgot was running dual WB's (one for each bank of cylinders), just an after thought.