I have a holley red fuel pump and a holley regulator, I cant keep the pressure regulated, I replaced diaphragm and put in the low pressure (red spring) I turned on pump and set pressure to 6 psi, it stayed their for about 5 seconds and then just steadily climbs up and I cant control it. I do not have a return line on this car it never needed one. the regulator always did a good job. do the internal check ball and spring on these regulators go bad? its never happened to me before so I have been scratching my head on this one. that being said I could use some answers on this and also some pressure regulator recommendations.
