Ford FE 390 428 Supercharger 1V Groove Accessory Drive Pulley These Speedmaster Fuel Rails feature

These Speedmaster Fuel Rails feature a larger internal diameter that dampens the pulses and provides increased fuel volume

Includes special adapter bushings to fit 1987-95 engines

These are direct plug replacements for OEM coils

They include a drain plug for clean and easy fluid changes

resistance and turns ratios to deliver10-15% more energy than the OEM coils

Ford FE 390 428 Supercharger 1V Groove Accessory Drive Pulley These Speedmaster Fuel Rails featureSpeedmaster accessory drive pulleys are built for smooth power delivery and reliability. Crafted from durable materials, this pulley ensures optimal performance and efficiency for supercharged setups.