The well tesing manifold is typically located on the rig floor, with other devices to evaluate the cement cementing quality, the cementing of foam cement and casing, as well as the collection of oil casing information, and provides flexible and variable flow control and well shut-in capability upstream of the process and measurement equipment during well test operations. The flow path on one side of the manifold has an adjustable choke and is used during well cleanup or draw down operations until a stable flow condition has been reached. The opposite side of the manifold houses positive, fixed-bean chokes that provide accurate flow control for predetermined flow rates under stable conditions. A full-bore bypass is incorporated through the center of manifold and can be used when choking downstream at the heater or open-flow conditions.