Originally Posted by TheRabbit
I really don't think it made 1160 with bb2's and it sure didn't at 7900 rpm's
And to boot I don't think you can get close to what the bb2's made with iron heads. I'm not sure, but some of the other guys can help with the iron heads question.
If it did make it at 7,900 why so high? If it's in a 4,200lb mud truck your probably running low side and shifting so you need to peak lower than 7,900 so it will turn back up after you shift.
I couldnt agree more with the above, someone had a happy dyno or is blowing smoke about the 1160hp. I assume you are required to run a Iron head ? If not there is several heads that will make more power without effort.