[Chipper Chapman]

Made 387 @ 5600 on A&J dyno. 100% new engine except for the cam as it was like new and only a couple seasons old. The worn out peice I had before made 384. The slide calculator agrees with this. A little background info, it's got all what's supposed to be great gear, .065 over cp c6 Pistons with total seal advantage ring pack, Manley rods, new heads from reputable shop that flow quite well, pac 1409x springs, bullet cam, short travel lifters etc.eal down is 8-9% cold, we've had it apart again to make sure nothing is going away or getting tight and all is well. It's just not adding up, and it's beginning to make my head hurt lol.