Helping a buddy with his boosted coyote.
From 4900-5300 it drops from 100% optimum power mapped point, to 60% of it.
However it stays on VCT SCHEDULE MODE (optimum power) throughout the pull.
Fueling is perfect. No drop in spark. No throttle closing.
This is an aluminator with boss springs. I think it might be back pressure related due to the springs and the point at which it happens
Any other ideas? I do have the intake cam moving quite a bit in that area, someone made reference to the VCT feed forward tables, but I am not sure in which manner to adjust them.