Experimented with dropping timing by about 15 degrees from 1,000 rpms to 3,000 rpms and load 30% -- 70%, and indeed 2 psi boost came in at 2,300 rpms vs. 2,750 rpms.  So (and not that I doubted it) there's something to this.  MAF readings for each RPM point as compared to previous runs showed a slight but definite bump in HP, so it seems to be a real improvement that can only get better with more fuel (which I haven't done yet).  Probably do this after I switch to EV14s; I'm out of fuel up high as predicted.

Next step is to do this the right way and adapt the anti-lag code to switch to a new timing map if accelerator pedal is over "X" demand, otherwise use the original timing.