I'm running extremely rich right now and we only did the -20% run to test it out. I backed it down to -15% after we were done for the street. We only had the AFC to tune it with (no wideband O2 unfortunately) so we were going by ear and listening for any detonation. The only time we thought we heard it was on the -20% run at the very peak of the RPM range right before letting off the throttle. Another reason I backed it down to only -15%. :)
John Yim (Houston) 91 ZTT Stage...stages are confusing. Just read the mods. :) 30 BSP, Houston Region SCCA "...Just as they're about to catch me... Twin... Turbos... Kick... In..."