Headers vs 340 manifolds
From a 1966 Speed Equipment Company catalog circa 1966. Isky is already getting away from the 3/4, 3/4 full and full race terms, having Road and Drag and Super Road and Drag, plus "Magnum" and "Magnum Super Le Gerra," etc., but still uses the terms "3/4" and "3/4 full." Below is a partial listing for B engine Chrysler cams:
From a 1966 Speed Equipment Company catalog circa 1966. Isky is already getting away from the 3/4, 3/4 full and full race terms, having Road and Drag and Super Road and Drag, plus "Magnum" and "Magnum Super Le Gerra," etc., but still uses the terms "3/4" and "3/4 full." Below is a partial listing for B engine Chrysler cams: