I think several of you are focusing on the peak numbers which is not the point here. Would not compare one car on one dyno to another car on another dyno - error range from actual is about +/-5 HP (or +/- 10 HP comparing 2 cars), and THAT is assuming that all the corrections are accurately pluged in & operator know what he is doing.
But, run to run benefit is MUCH more believable - that is the reason to dyno. This is a further demonstration of the AF/Cs capability. 8HP across the midrange and 3 HP peak is pretty good considering the limited flow mods on this car. If he opens up exhaust more, or intake with bigger t.body, MAF, more Extrude Hone, etc this mod could be worth alot more.
