This dual fuel line kit is designed for Holley 4150 Ultra XP carburetors with -8 O-ring XP bowls, featuring dual 8AN inlet fittings and a black Ano-Tuff finish with stainless steel hose.
Specifications:
- Center to Center Measurement: 9.75"
- Finish: Black Ano-Tuff
- Material: Stainless Steel, Aluminum
- Model: 4150 Ultra XP
- Inlet Fitting Thread Diameter: 8 AN
- Outlet Fitting Thread Diameter: 8 AN
- Product Type: Fuel Line
- Application: Universal
- Part Number: 34-44
Extends by .125" per bowl (.250" overall) to increase fuel volume in each bowl; the lines run 9.75" long compared to the standard 9.50" fuel line.
FAQ
What carburetors does this fuel line fit?
It fits Holley 4150 Ultra XP carburetors equipped with -8 O-ring XP bowls.
How does this differ from the standard fuel line?
It runs 9.75" long compared to the standard 9.50" line, increasing fuel volume in each bowl by .125" (.250" overall).
Is this a single or dual feed line?
This is a dual-feed fuel line with dual 8AN inlet fittings.

