Kevlar, Ceramic brakes. ???

I'd like to improve the braking of my 68 Cuda that has non-power disc's up front (from a 74 Dart) and the stock 10x1.75 drums out back although I don't want to install a booster. I've seen Kevlar and Ceramic brakes listed for it on E-bay. Has anyone had any experience with them? I know Kevlar is used on bands in racing transmissions and has a higher co-efficient of holding power.

I've also heard the ceramic pads are supposed to have more holding power but I put a set on my Dakota and if there was a difference it sure wasn't much but that could be because it is power brakes and harder to tell the difference.

The braking isn't really that bad going down the road but when I load up the converter I can't get the full stall out of it because no matter how hard I stomp the brake pedal it won't hold it back.

Here's the Kevlar ones I'm looking at.

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&ih=013&sspagename=STRK%3AMEWA%3AIT&viewitem=&item=230107454552&rd=1,1