1974 Dart 440 tuning help

What RPM's would you be seeing these increased numbers? What RPM are you starting these pulls at? Obviously the numbers you are seeing improved are under the curve, since timing would be all in by peak HP RPM, maybe not at peak TQ RPM.

Usually on a dyno I start my pulls between 2500 and 3000 and end them 250-500 past peak HP. I'm curious wat you are doing
I believe he is advancing the timing all through the rpm range to compensate for the slew rate of the electronics. He’s done some pretty extensive testing on this stuff.