Tried to fire it off tonight with no luck. I have spark but no fuel past the regulator in the rail. The rail is a 97 vette style with fuel return. The only thing I can figure is the regulator is bad because there is nothing to bleed out from the schrader valve on the driver side rail. I did have air in the line up to the regulator but was able to purge that out with no problem and have fuel to that point. What do you guys think?