Talked to Eddie over the weekend, and he basically said it was detonation. Called Erick at A&C Performance yesterday, he left a message for Todd, and long story short, Todd’s the freaking MAN! He spent all morning refining the tune and sending it to me, until we had the right mixture. Turned out one of the cylinders was running lean, so he upped fueling at the top, and boom, she’s all ready for the 20th!