Well, I'm in the process of converting to front disc on my 66. I made the conversion kit my self. I am using the stock 66 Nova hubs. I had the outside diameter turned down VERY slightly so that the hub would fit inside of a 2001 Camaro front rotor. The wheel studs have to be replaced with longer studs because the rotor is a little thicker then the stock drum. I then cut a caliper bracket out of 1/8" steel (Easy to cut and drill)and used it to position things properly. After everything fit and I was happy with the results I used the 1/8" bracked as a template to cut a new set of brackets out of 3/8 steel plate. I will be finishing things up next weekend hopefully and I'll let you know how things go. The only "Problem" is the large discs will not fit inside of a 15" rally wheel. I am running a set of 17" re-pop rally wheels made my Stockton wheel. The look old but modern at the same time. Also the stock 2001 brake booster and master cylinder does fit in my 66 with a small block and tall aluminum valve covers. I cut the 4 mounting studs off, drilled a hole smack dab in the center of each stud, and then litterally slid the booster over the stock Nova's master cylinder mounting studs on the fire wall. Then I drilled 2 additional holes in the firewall to bolt on the remaining 2 mounting bolts. It is raining here right now, but if it is dry I'll try to post some pics of the conversion.