Okay stam, I am not seeing any vacuum lines going to the regulator. I do, however, see a giant 1/2" line going from the intake manifold to the bottom of the regulator. I am a bit confused as to how this vacuum allows fuel to flow...are you saying that there should be vacuum at the carb where the large fuel supply line from the regulator meets the carb? If so, there is no vacuum there upon cranking. I didn't think there was vacuum until ignition though...it's not firing at all.
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