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what is the actual fuel pressure when it is running and when it wont start???
Ignition ON Engine OFF40.5 to 47.0 psi
With Regulator Vacuum Applied 3.0 - 10.0 psi Less than Ignition ON Engine OFF
REMARKS: May be checked with either of the following methods.
good, did you verify the pressure when it stalls out??? the pump may be good cold but seize up when hot
how are you making out