Each style of carburetor has a fuel pressure range where they perform the best. The owners manual that came with your carb will give you set-up and tuning instructions. However, you can use the table below as a basic guideline.
| Carburetor Style | Recommended Fuel Pressure |
| Summit Racing | 5 - 7 psi |
| Autolite | 4.5 - 6.5 psi |
| Holley | 5.5 - 7.5 psi |
| Edelbrock | 6.5 psi (max) |
| Demon | 5 - 6 psi (at idle) |
| Quadrajet (street engines) | 4 - 5 psi |
| Quadrajet (performance engines) | 6 - 7 psi |
How do I adjust the pressure?
To adjust and maintain consistent fuel pressure to your carburetor, use a Fuel Pressure Regulator.
Why does it matter?
If your fuel pressure is too low, you run the risk of running the fuel bowls dry. If the pressure is too high, it can force too much fuel into the engine. That can cause fouled spark plugs, among other issues.