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Holley is the legendary American carburetor and fuel-injection brand — over 100 years of induction history. From the iconic 4150 four-barrel to today's Sniper EFI conversions, Holley remains the choice for muscle car restorations, Pro Mod, and gasser builds.
The Holley Hi-Pressure Regulator (12-803) is the ideal solution for enthusiasts looking to dial in their carburetor's fuel pressure. With an adjustable range of 4-1/2 to 9 psi, this regulator allows you to fine-tune your fuel delivery to match your engine's specific requirements. Its sleek chrome finish adds a touch of style to any engine bay, while its robust construction ensures reliable, long-term performance.
This regulator is essential for preventing flooding and ensuring that your carburetor receives a consistent, stable fuel supply. It is perfectly suited for street rods, muscle cars, and daily drivers that require precise fuel management. By maintaining optimal pressure, you can improve throttle response and overall engine efficiency. Easy to install and even easier to adjust, the Holley 12-803 is a must-have for any carbureted build. Experience the difference that precision fuel control makes in your vehicle’s performance. Find all your essential fuel system components at GGCRACING.
Other popular Holley products customers consider together:
Holley is the legendary American carburetor and fuel-injection brand — over 100 years of induction history. From the iconic 4150 four-barrel to today's Sniper EFI conversions, Holley remains the choice for muscle car restorations, Pro Mod, and gasser builds.
The Holley Hi-Pressure Regulator (12-803) is the ideal solution for enthusiasts looking to dial in their carburetor's fuel pressure. With an adjustable range of 4-1/2 to 9 psi, this regulator allows you to fine-tune your fuel delivery to match your engine's specific requirements. Its sleek chrome finish adds a touch of style to any engine bay, while its robust construction ensures reliable, long-term performance.
This regulator is essential for preventing flooding and ensuring that your carburetor receives a consistent, stable fuel supply. It is perfectly suited for street rods, muscle cars, and daily drivers that require precise fuel management. By maintaining optimal pressure, you can improve throttle response and overall engine efficiency. Easy to install and even easier to adjust, the Holley 12-803 is a must-have for any carbureted build. Experience the difference that precision fuel control makes in your vehicle’s performance. Find all your essential fuel system components at GGCRACING.
Other popular Holley products customers consider together:
