I plan on checking my times next month on a 1000ft track. The temps should be around 55 degrees and sea level. I have a Star Stage 1 kit with starion front mount intercooler, fuel pump rewire and BKR7E-11 plugs gapped at .035. I still use the stock injectors with 12:1 fmu. Stock internals!

What psi could I run (fairly safe) on 106 unleaded race gas?

What psi could I run (fairly safe) on 116 leaded race fuel? 5 gallons mixed with 5 gallons of 93 pump gas.

Will my O2 sensors make it through 4 passes on the leaded fuel then I will fill it up with pump gas afterward.

I do have an egt for safe operation and plan on 17OO MAX temp for a few seconds.