Technical '54 Ford 2DR Post Gasser Front Suspension Geometry

I'll keep this post brief and welcome any feedback. With aspect of perpendicularity to gravity the straight axle I-beam ***embly is properly canted 5-7 degrees AFT of spindle centerline to avoid bump steer.
My question is as follows:
Since the axle is canted 5-7 degrees AFT of spindle C/L what is the preferred FWD angle for mounting the front shocks? Thanks Gent's