I use Wolf covers. I have had the one for my 66 for over 20 years and it does the job. On my 2001 I also have a Wolf which does the trick. When I lived in Mass and use to store my cars for the winter I used a Car Jacket which was a big bag I put the cars in for the winter along with moisture packets for storage. Can't go wrong with a Wolf.
Check them out here
http://www.carcoverguys.com/wolf_car...FTBqGgodBGDj5g