I tried the truck Monroematics on my '67 Satellite with SS springs. It would 60 foot pretty decent for what it is (1.68 to 1.72 running 7.90s in the 1/8) with them using bias ply slicks but when I switched to drag radials it would hook and then unload about 50 feet out and my 60 foot times would be all over the place.

When I took them off to replace them with some Competition Engineering drag shocks I noticed that the Monroes extended and compressed more like they were a 90/10 shock. The Competition Engineering drag shocks got my 60 foot times back where they were and they ride and handle way better on the street too.