Certainly not when driving the car. It pulls right through 8k and into the 9's with ease, feels natural. Its still making 170whp at 9,200 rpm. My old motor I was shifting at 8,500; the torque fell off much faster on that motor.honeslty, it's dead at 8200. Buy 8400, you almost might as well shift.
try going to -1 on the intake cam.
I'm not planning on going back to the dyno anytime soon. Unless I get some different cams.