I also run with the road racing crowd, so I've been told no more than 30 degrees. Vertical (or perpendicular to the movement of the wheel or axle) is the most preferred.

Also, Chevrolet proved (and now everyone else does it) that if you run one shock in front of the non-independent rear drive axle and one in the back, it significantly reduces wheel hop.


R-Bo

1959 Apache 1/2 ton Big Window, Short bed Fleetside (under reconstruction)
1966 GMC 305V6 in the family