In this week's Tech Tuesday, Gerrot Jacobson goes over a few fuels, octanes, and which ones work best for your setup.
I recently did a few tests on a 2013 Challenger and found some great results by stepping away from what I knew worked last time. I did my typical .84 Lambda for the first pull and it was very happy with fueling, but I did not stop right there. I tested runs at .82, .80, .78 and .76. Lambda.