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Holley Carbureted Fuel Pressure Regulator

510-12-803


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Holley 12-803
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$33.86
More than 10 available
Carbureted Fuel Pressure Regulator
  • For Use With Gasoline
  • Inlet: (1) 3/8" NPT
  • Outlet: (2) 3/8" NPT
  • 4-1/2 to 9 psi
  • Includes Mounting Bracket
  • Cast Aluminum
  • Chrome Finish
  • Ships
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    12-803 is rated 4.7 out of 5 by 15.
    Rated 5 out of 5 by from Works! Hooked this baby up after talking to Jegs customer service and wow,worked perfect! Can't thank you enough!
    Date published: 2019-10-15
    Rated 5 out of 5 by from works great I have been using this for a couple months now, ( 69 pontiac 400 ) All seems to be good, no leaks, adjustable, pretty much all you need. Good overall. Chad.
    Date published: 2019-09-17
    Rated 5 out of 5 by from Another great Holley product Very accurate dependable regulator. Bought this one to replace the first one I bought about 20 Years ago. Thanks
    Date published: 2017-12-24
    Rated 5 out of 5 by from Just what it should be. I've got a mean 1938 Chevy that was put together about 45 years ago. The electric fuel pump went bad a while back and I replaced it with a Jeg's pump which had too much pressure for the 800 Holley double-pumper. I wanted to keep the car as close as possible to the original look and build and didn't want a regulator and gauge showing. The Holley regulator said it was preset so I mounted it under the car on the frame and didn't use a gauge. The pressure setting from the factory works fine and I didn't have to stick a gauge anywhere,
    Date published: 2017-06-08
    Rated 5 out of 5 by from Product is easy to use and holds up well Installed on my RV and is easy to adjust and doing well. You can also rebuild it.
    Date published: 2016-12-04
    Rated 5 out of 5 by from Holley Regulator Very Satified!!!!!!!!!!!!!!! Would buyu this product again!
    Date published: 2016-10-04
    Rated 5 out of 5 by from Great Regulator for the money Awesome regulator for carburated nitrous set up. Have 3 regulators, one for each stage of nitrous. Rock steady and reliable. Best for the money.
    Date published: 2016-05-31
    Rated 5 out of 5 by from Holley regulator Been doing a lot of business with Jegs as of recent and will continue. Their prices are reasonable and the products are great. Thank you for being there for us gearheads
    Date published: 2016-05-16
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    Can I use this regulator with a efi fuel pump thats rated at 60psi for feeding a 750cfm carb? Will I need a return line since I’m going from 60psi to around 6-7psi? Does this regulator have a “out” return outlet to get un-used fuel back to the tank?

    Asked by: Logicalloco
    No, you will need an EFI regulator like this - https://www.jegs.com/i/Aeromotive/027/13220/10002/-1
    Answered by: Rusty B
    Date published: 2018-09-25
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