Hopefully you don't take this the wrong way other than constructive help... Lots of people piling on with opinions, but I think the one thing that stands out is the low RPM.

When I asked before what ET/MPH/Weight it ran before, I was impressed by the 9.0, but the 146mph really didn't match up very well. I'd think that would be more like 150~151mph.

I wonder if that's another sign of it making good power down low, but not up top?

Did you re-use the valve springs by chance with the new cam? I wonder if they are dead?


Although if you look at your peak TQ at 4800RPM, and compare it to Andy's 572" dyno sheet... even the peak torque RPM is really low.

Maybe try a cylinder pressure test. If it's through the roof it might indicate the cam is really small, or WAY advanced from what you thought.