Quote:

Which regulator will supply more volume of fuel?
The fuel pump stays the same in both tests,which is deadheaded and puts out 18 psi to the regulator.The first test the regulator is set to 7psi.The second test the regulator is set at 5psi.
Which regulator will supply more fuel in volume?



The 5 psi setting(output pressure) will flow more
fuel with the 18 psi input