Howards Everwear Distributor GearChev V8 90°V6For 0.491 Shaft (Std.)
Chevrolet V8/90° V6For .500 Shaft (MSD/Etc.)
Howards Everwear Distributor GearFord 221-302/351W5.0L For 0.467 Shaft
Howards Everwear Distributor GearFord 221-302/351W5.0L For 0.500 Shaft
Ford 221-302/351W/5.0LFord .531 Shaft