Lee steering box?

[Marcus SC&C]

The Lee boxes are individually calibrated to each application. They don`t require a higher pressure or higher volume pump but they do require a pump that`s at least working 100%. A 40 year old stock pump may not be anymore so a fresh one may be in order or you can change the valve on the output side which can help. Lee`s racing boxes are calibrated to slightly higher pressure (1450psi vs. 1350psi). They`ll work with a std. pump but are more responsive with a higher output pump. Mark SC&C