Well, 298. I need to figure out a certain way to lean out the mix to get anymore. My boss and I took his car out to do some testing. This is an RX8. We got on the highway and he just started pulling out fuel, we leaned out the mix to 19/1 air fuel, any further dosnt register. Then we continued to lean it out a few more points and it didnt feel like it was running that lean, usauly it bucks and stumbles starting at 15/1. Well for the big test I turned off the generator and the car died. We pulled over and had to add 30% fuel to get it running again. Hmmm