Built on an Offenhauser #5019 360 Equa-flow triple manifold. Manifold: no cracks, repairs, One bolt extracted from bracket hole and new stud supplied. Fits 1959 thru 1964 Oldsmobile V-8. Center carb has the larger venturi @ 1 1/4”, with a heat choke installed, and regular idle circuits. End carbs, no idle circuits, are activated by progressive linkage. Provision for manifold vacuum hookup on center carb. Provision for port vacuum on center carb to hookup distributor vacuum advance. A good ol’ reliable street ready tri-power ready to bolt down. Frog mouth scoops or bonnet type cleaners included.