.150 Alcohol Needle & Seat - Each

The Advanced Engine Design .150 Alcohol Needle & Seat is a precision fuel metering component engineered for carburetors running on methanol and other alcohol-based fuels. This adjustable needle and seat assembly delivers the accurate fuel flow calibration required for high-performance racing engines, where fuel mixture control directly impacts both power output and engine reliability. The stainless steel construction resists corrosion from alcohol's aggressive properties, making it the standard choice for bracket racing, drag racing, and other performance applications demanding alcohol fuel compatibility.

The 0.150-inch orifice opening is the key specification determining fuel flow rate through the carburetor's fuel bowl. This size is calibrated to maintain proper stoichiometric balance in alcohol-burning engines, which require richer fuel mixtures than gasoline to develop full power. The adjustable design allows tuners to fine-tune fuel delivery across varying load and throttle conditions, essential for optimizing performance at the strip. Advanced Engine Design's stainless needle and seat pairing delivers the precision fit and durability needed for consistent metering under repeated high-RPM cycles and the chemical stress of methanol exposure.

This assembly fits Holley and Quick Fuel carburetors commonly found on naturally aspirated and supercharged racing platforms. Carburetor tuners and engine builders select this needle and seat when replacing worn metering components or setting up a fresh carb for alcohol fuel service. Whether rebuilding a race engine or maintaining existing performance equipment, this part ensures the precise fuel control that alcohol-powered competition engines require to run safely and competitively.

Sold individually. Part numbers and compatibility should be verified against your specific carburetor model before ordering.