Here are the details
2001 3L longblock complete with 3L heads, cams, and intake. l TB, SVT ecu, SVT maf, gutted cats, no res. LIke I said this was just a baseline before any tuning. It needs to be richened up down low. Warmonger you are correct about the secondaries. The computer still thinks there are secondaries so it add fuel in the portion of the graph where the power spike is. I am going to have this dyno tuned here soon with a custom chip so it should make the graph a lot more linear.
Chris