Hi Zip,
We had a Ron's dealer who sells, installs & runs them on his own car come & look at the dyno results that showed the fuel pressure, EGT and CO2. They were all within specs, if there had been anything questionable on the fuel system we would have corrected it right then. The engine made the most power with #40 nozzles and #86 pill in the return line, timing at 32 degrees. This setup made the most power any leaner or richer resulted in a loss of hp. In other words, we fine tuned the fuel system & timing to get the most hp possible.