SKU: AFS13204
UPC: 684980000320
MPN: 13204
The Aeromotive A1000 Carbureted Bypass Regulator (Part No. 13204) is a precision fuel pressure management component engineered for carbureted engine applications requiring stable, adjustable fuel delivery. This in-line regulator maintains consistent pressure across a 3 to 15 psi range, making it suitable for naturally aspirated and mildly boosted carbureted engines where fuel system stability directly impacts idle quality, throttle response, and cold-start reliability.
The A1000 features a 10 AN female O-ring inlet connection, dual 6 AN female O-ring outlets for primary and secondary carburetor circuits, and an 8 AN O-ring return line—a layout that accommodates dual-feed carburetors or allows return-style fuel system configurations. The 1/8 inch NPT gauge port enables real-time pressure monitoring, critical for tuning fuel delivery curves. Black and red anodized construction provides corrosion resistance in high-heat engine bay environments. Fuel compatibility includes gasoline, E85 ethanol, and diesel, offering flexibility across fuel types and modification platforms.
This regulator serves street rod builders, classic car restorers, and performance enthusiasts maintaining or upgrading carbureted powerplants. Proper fuel pressure regulation prevents carburetor flooding during engine shutdown, eliminates vapor lock in warm-weather driving, and ensures consistent jetting response during acceleration. The bypass design returns excess fuel to the tank, reducing heat stress on the fuel system compared to fixed-orifice restrictors.
Aeromotive's A1000 occupies the mainstream pressure range for carbureted engines; lower psi ratings (3–15 psi) distinguish it from EFI regulators (40–60+ psi) and make it unsuitable for fuel-injected conversions. Compact footprint (4.9 x 2.65 x 6.6 inches, 0.89 lbs) integrates easily into existing fuel system layouts. Installation requires compatible AN hose and fittings, a fuel pressure gauge, and feed/return line planning to your specific carburetor and tank configuration.
WARNING ⚠️
You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
Purchasing a Firearm? Click HERE to see our firearm purchasing guide.
