Not trying to beat a dead horse here, but the combo you went with will probably be okay if revs are kept to 6500 (your cam will probably actually top out closer to 6k, tho), and boost is kept to 6-8lbs. That is a good truck combo. You added stroke and shortened rods(based on a 350) which makes for a much less than desirable rod/stroke ratio. What does this mean, higher piston speeds at any given rpm and less dwell time at tdc/bdc, and therfore less piston acceleration. What you do get to get away with though is not running a small base circle cam or grinding the rods. I wouldn't be worried about power, the engine will make plenty. I'm just nitpicking and pointing out that the combo is less than ideal for a performance, high rpm engine.