An accurate gauge makes it easy to set your fuel pressure regulator. This 1.5 inch diameter liquid-filled pressure gauge can be mounted in the engine compartment to monitor the operation of the fuel pump (and regulator, if used). If you are using one of the Holley regulators and are only using one of the outlet ports, the second port can be used for this gauge using a reducing bushing (Part No. 3257-06-02). The gauge can also be mounted in-line using an adapter (see table below). Face styles may vary.
Note: Liquid-filled gauges are partially filled with liquid, and an air space is provided for expansion and contraction. A visible air bubble is normal.
| How to Install a Fuel Pressure Gauge in Your Fuel System |
|---|
| Fuel System Plumbing | Location | Tee Fitting Required | Hose Ends Required |
|---|
| 6AN Braided Line | Spliced into Hose | 1069-06 (Male-Male) | 3271-06-000 x 2 |
| 6AN Braided Line | End of Hose | 1069-06MF (Male-Female) | 3271-06-000 x 1 |
| 8AN Braided Line | Spliced into Hose | 1069-08 (Male-Male) | 3271-08-000 x 2 |
| 8AN Braided Line | End of Hose | 1069-08MF (Male-Female) | 3271-08-000 x 1 |
| 5/16" (8mm) Rubber Hose | Spliced into Hose | 3212 (all Female) | 3220-02-05 Hose Barb x 2 |
