[Walt Fricke]

1) If you can't post a dyno sheet which has RPM across the bottom, how about you specify the gear you were in (if 6100 was where it shut off, I'm guessing 4th, but no one should have to guess), the ring and pinion, and the ratio for that gear (or, if a stock transmission, which one), along with your rear tire specs.

2) I'm dubious that a changing the cam timing by that amount is going to make much of a difference, but it might. Just be sure you are checking for full throttle butterfly opening.

3) At one time I thought that if you got rid of a rev limiter apparently set at 6,100, you'd get that HP you think you should. But looking at the graphs again, I guess not - since the HP falls off with the torque fall off, rather than continuing to rise as it typically does with race motors and race cams at those rpms (the increased revolutions more than offset the fall in torque), something more serious is going on to kill the breathing.

4) By all means post the new dyno results. I wish I could time my cams within 0.01mm of each other side to side! Anyone who can do that surely can set them to 5.6 without too much trouble.