Rear brake options

Thanx for all your opinions, I drove my 70 Challenger with 4 wheel drums. I then upgrade to discs in front. Wow what a difference. I then upgraded to 4 wheel disc brake again it was very impressive. I live in the Twin Cities where you do need the best brakes possible for stupid drivers. It is common to panic stop from 60 mph. So I don't believe for one second a car with rear drums can stop as well as a disc car. Yes I agree rear wheel lock up can be an issue but it can be corrected. I have been a mechanic for 20 years and could assemble one of these cars blind folded. There are engineering deficiencis in these old cars. My goal is to make them as safe as possble.