This place has them in their ad for $70 in the March 2001 issue of MMFF.
http://www.holcombmotorsports.com/
I don't see the mounts on their webpage though.
I wonder how well these polyurethane mounts hold up since they are $140 for the pair? Twice as much as the drop solid mounts. I'm still going to get some solid motor mounts though.
I'm begining to wonder if they are just calling their mounts "drop solid" and they don't actually lower the motor any? They look smaller and simpler then other solid mounts that I've seen though in the magazine picture. Anyone want to call them and find out?