Brand: Allstar Performance Manufacturer's Part Number: ALL81222 Part Type: Distributors Product Line: Allstar Performance Ready-to-Run Distributors Automotive Fittings Part Number: AAF-ALL81222 UPC: 848238041286 Distributor Cap Included: Yes Distributor Cap Style: Male/HEI Distributor Cap Type: Small cap Ignition Coil Included: No Ignition Module Included: Yes Computer-Controlled Compatible: No Trigger Style: Magnetic Advance Type: Electronic and vacuum Ignition Box Required: No Mechanical Tach Drive: No Slip Collar: No Distributor Gear Material: Iron Distributor Gear Rotation: Standard Distributor Cap Color: Black Housing Material: Aluminum Housing Finish: Machined Marine Use: No Remanufactured: No Quantity: Sold individually. Notes: Will not fit computer-controlled applications. Distributor drive gear is not compatible hydraulic roller cams. Description: Allstar Performance ready-to-run distributors deliver point-style size and vacuum advance with electronic ignition technology. They're perfect for early GM cars without clearance for an HEI. The distributor housings are made of CNC-machined 6061-T6 aluminum with an upper support bearing to provide accurate timing at higher rpm. Allstar ready-to-run distributors can use any external stock or performance coil, and they fit small and big block Chevys (except 348 and 409).