This is the engine fuel intake manifold valve for many different GM vehicles from 1981-1988. This is a brand new, factory OEM, genuine GM part, manufactured by ACDelco, still in the original box. This valve has 2 ports on it.

GM Part # 22536551

Alternate Part #'s 212122 ; 212-122 ; 22514776

Item is number 54 in the GM diagram.