Holley Performance 12-880 Fuel Injection Pressure Regulator
Holley Performance 12-880 Fuel Injection Pressure Regulator
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Holley Performance 12-880 Fuel Injection Pressure Regulator

3 stars out of 2 reviews
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2 ratings
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Key item features

  • Adjustable Pressure: Features an adjustable pressure range from 4-65 psi, accommodating both carbureted and EFI applications.
  • Durable Construction: Constructed from precision-machined 6061-T6 billet aluminum with a black anodized base and clear anodized top.
  • Return System: Designed for use in fuel systems that incorporate a return line back to the fuel tank.
  • Port Configuration: Includes one 6AN O-ring inlet, one 6AN O-ring outlet, and one 6AN O-ring return port.
  • Included Accessories: Comes with a fitting for manifold reference and an 1/8 NPT gauge port for monitoring.
  • Boost Reference: Offers a 1:1 boost reference ratio for consistent fuel pressure under boost conditions.
  • Versatile Springs: Ships with a 4-15 psi carbureted spring installed, and includes a second spring for EFI systems up to 65 psi.
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Columbus, 43215
Arrives by Fri, Feb 20
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Sold and shipped by The Twister Group
4.325503355704698 stars out of 5, based on 298 seller reviews(4.3)
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3 out of 5 stars
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Showing 1-2 of 2 reviews

Oct 20, 2025
Pender
3 out of 5 stars review

90 psi to 6 1/2 psi

When I receive this, I intentionally turned the pressure further down because it was supposed to be set at seven. I turned on the fuel pump which has 90 psi and the pressure instantly shot up over 15 psi and pegged my gauge, which is now ruined. Turn the adjustment all the way out and it wouldn't go any lower than 8 psi. Check the pressure on the return line. It was only 1-1/4 psi. which, according to Holley is fine. I ended up buying a new one and returning this one for a refund. The new one before hooking it up. I turned it all the way down and would only go as low as 6 ps, which is fine for my application. The first one I received just must've been a bad regulator.

Review from jegs.com
Helpful?3TZU90G188BT182989467
Mar 22, 2021
KEVIN75
3 out of 5 stars review

GOOD REGULATOR OVERALL

BOUGHT THIS TO BRING MY FUEL PRESSURE FROM 55 PSI TO 7 PSI , WORKS GREAT OTHER THAN IT SEEMS TO ONLY GET PRESSURE DOWN TO 8 OR 9 PSI WONT GO ANY LOWER , BUT ALL IN ALL IT WORKS FIND FOR MY APPLICATION

Review from jegs.com
Helpful?3TZU90G188BT182989467