what am i doing wrong?

Ok... Assuming the cam is installed straight up, and using stock Edelbrock flow numbers, you should be launching at 3000, shifting at 6300, running 12.34 @ 110 MPH.

That's just a quick run through Desktop Dyno/Drag. I can tune it a little later tonight to get more exact. DD says max HP is 381 @ 6000, tq is 377 @ 4500.