Read my dyno plot in my modifications section...
We also calculated from fwhp to hp at the crank... and 218 hp is what it came out to be... Of course I have no baseline, but from an average of other that was there that day with stock SVTs, it gain ~18-20 hp. I never made the comment of 20hp definite, by hypothetically, it's true...

Of course the gains are in the high end, and low end hurts a little, BUT get MSDS headers, and that should solve that problem... I'm going to the dyno again with the MSDS on Sept 8th, so I'll have a new dyno plot then...