Well I wasn't happy with the first experiment I ran, which was to decrease fuel pressure, and also prevent the stock regulator from building pressure under boost. I actually forced the regulator to drop the fuel pressure as a function of manifold pressure. I'm confident that the lower fuel pressure reduced the atomization of the fuel and degraded the spray pattern of the injectors.

Last night, I re-installed my FMU and am now running 440cc injectors, 1:12 FMU and VAFC. Interestingly enough I experienced detonation with my initial fuel settings. I thought the added pressure would increase fuel flow significantly, but now that I think about it, the fuel that the FMU adds is not that extreme. So far with just a little playing the car feels like a different animal. I will continue this experiment for a while and will post the results. I am still running a check valve between the MAP and the intake.