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Speedway Aluminum Fuel Log for Holley Carburetor

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This fuel log ensures adequate fuel pressure to carburetor and helps eliminate fuel starvation problems. Fuel pressure is regulated after carburetor has been supplied, and not before. Must use return fuel line to take full advantage of benefits.

Features -8 AN inlet and two -8 AN outlets. Threaded 3/4" NPT (plugged) on back that can be used for a return line. Carburetor fuel line also has 1/8" NPT outlet for fuel pressure gauge (fittings sold separately). 

  • 9-1/4" from fitting to fitting
  • Standard Holley spacing is 9-1/4"

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910-11590 Instruction Sheet (pdf)

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Ensures adequate fuel pressure to carburetor and helps eliminate fuel starvation problems. Fuel pressure is regulated after carburetor has been supplied and not before. Must use return fuel line to take full advantage of benefits.

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Adjustable Pressure Relief Valve for Belt Drive Fuel Pump
                        

This pressure relief valve is the ideal bypass valve for use with a positive displacement fuel pump (typically not required for diaphragm type pumps). For use with any carbureted race engine using a belt drive fuel pump. This bypass valve is well suited for alcohol carburetors with gear type pumps.

Adjustable diaphragm lets you set fuel pressure while the Holley jet inside allows you to reduce idle fuel pressure without affecting operating pressure. Due to fuel pump variations, the jet is not included. The fuel pump relief valve features a stainless steel seat and bronze popitt valve for maximum resistance to corrosion.

  • Easily mounts directly to the carb fuel log
  • Adjusting screw on top sets high RPM fuel pressure
  • Easy pressure adjustments at 7-14 PSI
  • Adjustable to vastly different fuel pumps
  • Maximum fuel availability at the carb
  • 3/8" NPT ports

910-11579 Instructions (PDF)