Holley Header Carb SelectorView CartHolleyTVYouTubeTwitterFacebook
What item is right for you?
Ask our experts:


Suggested Retail: $271.95
Your Price: $243.95
FREE Shipping on orders over $100*
Buy Now

Fuel Pressure Regulators – EFI

Boost Compensating Universal EFI

PART #: 512-505

UPC #: 090127471906

This Fuel Management unit is designed to run in conjunction with the factory fuel pressure regulator. This is the ultimate
manual fuel management control unit and is installed in series with a stock regulator in the return line back to
the tank. The unit increases fuel pressure in proportion to boost pressure up to a 4:1 Idle/WOT pressure ratio
depending on which included adjustable disks you select. This add on upgrade is ideal to be used with aftermarket
turbo and Supercharger kits that require additional fuel pressure volume as the boost pressure increases. This unit is
adjustable from 20–75 PSI, offers two fuel pressure slope settings and is recommended to be used in conjunction with
any Holley High volume EFI fuel pump. All Fuel management units are produced from precision CNC machined billet
aluminum and include detailed installation instructions.
Adjustable Fuel Pressure Control of Naturally Aspirated, Turbo or Supercharged Engines; Compensates up to 4:1 For Boost

  • Adjustable from 20-75 PSI + boost reference
  • Supplies increasing fuel ratios in respect to boost produced by turbos and superchargers
  • Designed to supply additional fuel for aftermarket turbo and supercharger applications
  • -6 AN fittings included
  • Engineered to regulate extreme flow volumes generated by racing fuel systems
  • Precision CNC Machined 6061 T6 Billet Aluminum for Durability

Shipping Dimensions
L 3.500 in. x W 2.500 in. x H 3.500 in.
Weight 0.450 lb.
*Free Shipping & Handling only offered to the continental US on orders over $100.

Holley | Hooker Headers | Earl's | Weiand | NOS | Flowtech
Copyright Holley Performance Products, Inc.
NASCAR© and NASCAR Performance© are registered trademarks of the National Association for Stock Car Auto Racing, Inc.
Web Index | Terms Of Use | Vendor | Corporate | Search