View single post by discogodfather
 Posted: 02-16-2022 04:08 pm
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Joined: 09-17-2007
Location: San Francisco, California USA
Posts: 221
When I measure fuel pressure I have two small gauges sitting at the carbs they measure 2.5psi. A few feet away at my fuel pressure regulator they single line measures at 4 psi (I have a cockpit mounted electric gauge to see that pressure).

I think that depending on the regulator, measuring at the carbs is the correct way to measure fuel pressure, and that there is a significant drop across the regulator. Not sure what you setup is like.