This is a very conservative dyno, and my A/F is good. I imagine old cats could be hurting me by 5hp or so. I was only 5-10hp lower than most people, so I'm not too stressed: I don't think there's a real problem. I'll gut the precats and try again later. I'm also thinking it might be all the oil I'm running. I remember someone (RogerB?) dynoing low as well, and high oil levels were brought up as a possibility.
Does it look like my torque rolls off a little too steeply? Even with the spark issue up top, it seems to be dropping too fast. That really makes me think airflow. Shouldn't an optimized Y and precat gutting flatten that out quite a bit?
