Speedway Aluminum Fuel Log for Holley Carburetor
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Q & A
What's in the Box
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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Aluminum fuel log complete with flexible AN 8 female swivel fittings ready for easy installation to Holley model 4150 4 bbl. carb. #8 pushlock on inlet eliminates extra fittings.
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 AN8 inlet and two AN8 outlets. Threaded 3/4" NPT (plugged) on back that can be used for a return line. Also has 1/8" NPT outlet for fuel pressure gauge, fittings sold separately.
These dual feed fuel line kits give you the looks, performance and flexibility your car deserves. Fuel log features -8 AN inlet, 1/8" NPT tapped fuel pressure gauge port, and allows you to have a fuel tank return if needed.
Fuel line fits Holley 4150 style Double Pumper carburetors with 7/8"-20 inlets.
Female aluminum swivel coupler for 37° AN fittings.
- -8 AN female adapter
- Straight style fuel line hose connector/coupler
- Lightweight aluminum hose ends are completely reusable, and interchangeable
- 37° angled sealing surface guarantees a positive anti-leak seal
- Available in a Red/Blue corrosion resistant finish
This -8 AN adapter fitting fits most Holley and all Quadrajet up to 1974 with 7/8"-20 inlet.
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)