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Originally Posted by camcojb
the boost reference for the fp regulator must be in the hat. That could be the dying issue you saw. The reason for this is becuase the carb is seeing extra pressure even when you're not in boost. If you do not compensate the fuel pressure regulator then the hat may see 4-5 psi even when the motor is not seeing boost, and the 6 psi of base fuel pressure you have will now be only 1-2 psi, due to the pressure in the bowls reducing the fuel pressure the carb sees.
You must move that back to the hat, it needs to rise evenly with what the top of the carb sees or you're going to be chasing dying and tuning issues forever. The boost gauge goes under the throttle blades, but not the fuel pressure reference. If it's still too rich you need to tune the carb.
Jody
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Hey Jody, got your IM. I think they did pulls with the boost reference on the carb, that's when they had problems. I don't pretend to know about this stuff though. I know there were running really rich with the boost ref on the carb. I just sent Mark, the tuner the info from this thread and what you guys have been saying. I think they had the boost reference on the back of the hat, not on top. Does it need to be on top of the hat?