I installed a frontrunner serpentine system from Vintage on my 66 and have to use an electric fuel pump. I bought a Holley Blue and it is loud as hell, even back next to the fuel tank with Dynamat extreme throughout the car, it is still quite noticable until I start the car. My problem is that the pump puts out so much more pressure that I get little leaks where the filter is etc. (and the c-clamps are on there pretty tight - almost to the point where the rubber is coming through the slits). Should I locate the regulator in the back - now I have it right in front of the carb? Should I run another line that I "T" back by the pump and run a return line to the tank to take the pressure off?
Do you have a carb system? My Holley blue came with a regulator to get the pressure down to 4-5 psi. The blue is spec'd out at 14psi I believe. Yes mine is loud too and I am considering going back to mechanical until I get my '86 302 ready to drop in.
I'm running the Holley blue. I quieted it down by mounting it on a rubber insulating pad. If your not used to it, it will still be noisy. I don't mind it myself since I only hear it inbetween turning the key on and starting the car. Before I was able to get the fuel psi regulated, it was definately blowing past my needle seats in the carb. You have to have a regulator for carbed applications. Also, invest in a liquid filled psi gauge.
Most high pressure pumps require a bypass to survive. I am not sure about the Holley, but Barry Grant pumps use a bypass return either at the pump or after the regulator. A return line may help with the sound.
The blue came with a regulator so I should be good here and I screwed a liquid gauge in the open fitting on the regulator. My concern is that I am putting too much pressure on the line and wonder if I am going to experience a problem over time. Has anyone else had issues where the line connections had issues - now, my lines are just clamped with "c-clamps" instead of Russell type AN fittings
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