Chev TBI MSD Street Fire EFI Distributor 1987 - 1995 # MSD5591Chev TBI MSD Street Fire EFI Distributor 1987 1995 # MSD5591 Computer Controlled Compatible: Yes Trigger Style: Magnetic Advance Type: Computer controlled Cap Style: Male HEI Mechanical Tach Drive: No Slip Collar: No Gear Material: Steel Ignition Box Required: No Distributor Gear Rotation: Standard These MSD Street Fire EFI distributors are ready to drop in your V8 engine and replace the worn out OEM piece. They feature a factory style ignition