Based on performer RPM-series with unique air gap. Air gap cooler and denser mixture for more power. Designed for 1500 to 6500 RPM. Improve performance on the street or race track. Larger cross-sectional area and taller card flange. Compatibility with large displacement 351W based engines. For 4 bbl carbs. Available in cast, polished and endurashine finish.

Product Features:

• Based on Performer RPM-Series with Unique Air Gap
• Air Gap Cooler and Denser Mixture for More Power
• Designed For 1500 To 6500 RPM
• Designed For Street And High Performance
• Larger Cross Sectional Area
• Taller Carb Flange
• Compatibility w/Large Displacement 351W Based Eng.