LActrical NEW REPLACEMENT HIGH OUTPUT ALTERNATOR FOR STREET HOT ROD RACE CAR APPLICATIONS 70 AMP 14-Dec Volt, CW Rotation IR (Internal Regulator) IF (Internal Fan) Pulley Type: V-1 Single Pulley Approximate Weight: 6.93lbs / 3.15kg MINI STYLE STREET ROD RACE CARS SELF EXCITING,1-WIRE HOOKUP ALTERNATOR FITS ON: MOST CHEVY STREET RACE CAR APPLICATIONS This is modified Single-wire hookup Upgraded Alternator with internal self exciting voltage regulator(No external Voltage Regulator required) simplifying your wiring. Wiring is simple because of the self-exciting regulator that uses only a 1-wire (Battery positive Cable or Hot wire) hookup. You will need only your main charging wire connected to the battery. Important Note:For safety and better result,We recommend installing a fused 4 gauge main charging wire to allow maximum current flow to your battery.