Not sure why you are specifically asking about sol lifter cams. In production, they were used in the Poly & 273 engines.
If you are asking because you are trying to relate the performance of the more common hyd cams to a sol lifter, then you might find this helpful as a means of comparison. This applies to the 050 numbers: the difference between them varies between 8 -15*. A tight lash sol lifter cam [ 0.012" lash ] of 240 @ 050 will perform similarly to a hyd cam of 232 @ 050.
A large lash [ 0.030-32"] sol cam of 240 @ 050 will perform similarly to a 225 @ 050 hyd cam.