Fuel Pressure

Regulators

HELPFUL TECH TIP:

The best fuel pressure at the needle and seat of a Holley® carburetor is 6.5 to 7 lbs.  This keeps the fuel level in the bowl at the most consistent height.  "Fuel Pressure" is very important.  "Volume" is even more important.  In order to get good performance, a racer must have both fuel pressure and volume.
               

FUEL FITTINGS

    
               

 
  • 3014 - #6 AN x #6 straight with o-ring
  • 3015 - #6 AN x #8 straight with o-ring
  • 3017 - #8 AN x #6 straight with o-ring
  • 3022 - #10 AN x #8 straight with o-ring
  • 3023 - #10 AN x #10 straight with o-ring
  • 3024 - #10 AN x #12 straight with o-ring
               
               

5200

    
               

 
  • The famous Holley® "Blue" regulator
  • 0.220" inside diameter
  • Regulates pressures from 4.5 to 9 p.s.i.
  • Single carburetor gasoline applications or nitrous fuel systems
               
               

5210

    
               

 
  • Holley® 2 port regulator
  • One 1/2" pipe thread inlet
  • Two 1/2" pipe thread outlet
  • #8 inlet and #6 outlet fittings included
  • 0.437" diameter hole allows huge fuel flow
  • Single carburetor alcohol applications or any requiring maximum fuel flow
               
               

5220

    
               

 
  • Holley® 4 port regulator
  • 0.437" inside diameter
  • Equipped with four #6 outlet fittings and one #8 inlet fitting for easy plumbing
  • Single carburetor alcohol applications or any requiring maximum fuel flow
               
               

5230

    
               

 
  • Billet 2 port aluminum body
  • External adjuster allows regulating pressures between 3 and 12 p.s.i.
  • Stainless Steel guided needle and seat assembly
  • #10 inlet port and #6 outlet port (FITTINGS NOT INCLUDED)
  • Perfect for single carburetor applications
               
               

5231

    
               

 
  • Billet 4 port aluminum body
  • External adjuster allows regulating pressures between 3 and 12 p.s.i.
  • Stainless Steel guided needle and seat assembly
  • #10 inlet port and #6 outlet port (FITTINGS NOT INCLUDED)
  • Great for tunnel ram applications
               
               
 

291 North F.M. 549

P.O. Box 1028

Rockwall, Texas 75087

Phone: 972-722-8333

Fax: 972-722-8904

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