HP seem right to you???

158hp ????....at the treads ?????....doesn't sound right.
I have 205hp at the treads in a 4.0 lt 6 cyl....5sp manual, std CR (8.8:1), std cam (at std timing) & v/springs, std ECU mated to a Moristech piggyback ECU, IC&E 7amp ignition, std s/plugs, Pacemaker Comp extractors ( P#4480 ), homemade Cat, homemade side by side 2&1/4" exhaust & muffler, run it on 98 RON petrol, 3" K&N pod filter, std injectors (MPFI), std intake manifold, std throttle body........but I did do a port & polish job on the cyl head, with back-cut intake valves ( std size valves ).
[ame="http://www.youtube.com/watch?v=jJTh9F3Vgg0"]YouTube - ED 4.0 dyno run 20-06-10[/ame]