Chris, the regulator housing looks very nice. Will you be making them available to others?
Also, where will it be located In the fuel line? If the regulator is located before the solenoid I suspect that it will not sense fuel demand exactly as designed; If placed after the solenoid it seems it would then damp the solenoid pulses, losing the increased vaporization inherent to pulsed fuel delivery. Just my thoughts, and not very well educated ones at that.