The lobe center angle and the lobe separation angle are one in the same. Maybe it's how you fellers down there use different terminology. You're talking about the Intake Center line, not the lobe center angle. The lobe center angle is the distance from the peak of the intake and exhaust lobes. Just the same as the Lobe separation angle. The intake center line is the comparison of the intake lobe peak TO the lobe separation angle. I don't know how to make it any plainer. Again, maybe we have some language barrier going on. I don't know.