Any idea how good these are?

While reading a few Mopar mags, and muscle car mags, I found this place..

Seems like they've got new parts for drum brake setups. Any idea how well these work? I'm not really expecting disc-like performance, but for those of us saddled with 4 drums, would these be a useful upgrade, or is it just better to set the cash aside for a full (or at least front) disc conversion?
Author: admin