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. Works on both 4 volt and 2 volt cast iron Cleveland heads. Complements Edelbrocks new 351C performance RPM cylinder heads. Available in polished or cast finish. Not for use on pollution controlled motor vehicles.
