Here is a picture of the dyno screen for the best run. Getting really close to 650 hp and torque is a tad more at 666. The engine just stops pulling after 5100 rpm. It continues to make power but it accelerates very slowly. The airflow continues to go up, the AFR stays where it should be but it just can't accelerate against the brake. It could just be running out of air since the cam is small. I know the heads are good for more power. The Sniper is just about maxed out at 650 hp but I don't think it is the cork.