My brothers is at least 550, I'd say just from seat of the pants, but right now it ain't anything, a bent pushrod and at least one bent valve do that, It's failing the contribution test on 1,4 and 8.
Nice setup for a 7.3, your friend has.
The Transmission got here this morning, and we got mine down but not out so far, got the old cooler out and the new Suncoast cooler is ready to go in, and got the lines flushed. Hopefully I'll have time to get the truck jacked up and the new transmission in tomorrow night.
As for Rods I'm gonna hold off on for the moment and hopefuly get them in a few months.