[mppickett]

Hi David,

First, what an absolutely great build! I've got some questions but I'll send them outside of this thread. Regarding the differences in O2 between the banks, here are my guesses:

1. O2 sensor or controller? If you are using two then perhaps you could swap to see if it is a sensor calibration issue.

2. Stuck fuel injector? Check your plugs to see if a cylinder looks lean or pull the lean bank and flow test them.

3. Difference in airflow in the intakes? I've heard that flow matching is a good idea if you're going to go for big hp. Problem if you're tuning a cylinder lean.

Again, looks terrific.
Mike