So here are the current results, we are progressing very well. There is still more room and we are working on it. Here a quick before and after as of right now.
Same 91 octane + nos octane booster on both runs.
Before, getting very limited timing advance curve, 1.5 degree and 11.2 psi at 6500 RPM. Very inconsistent results from run to run.
After some work we are now getting 8.5 degree of advance and 14psi at 6500 RPM.