11 3/4 brakes

furyus2 said
It's not locking up. Just feels like I press on the pedal and it takes too long to slow down. I will check on the pads. I can't remember if they are semi-metallic or not. Fluids fairly new from the swap, calipers rebuilt,wheel cylinders were replaced a few years ago. Not sure of the size. Stock for 69 RR. Need to look that up.lines are new. No air in the lines or leaks. Been considering power brakes. Will they work with 12 inches of vacuum?

Could also be that your pads are contaminated, just a little oil or grease will seriously decrease your braking performance. Are they new? If they're brand new and you don't have many miles on them, its also possible that they might not be fully broken in yet. But thats a very short mileage issue, should go away pretty quickly.

Power brakes are ok, I actually prefer the manuals on my Duster vs the power brakes on my Challenger. Duster also runs 11 3/4" disks. Again, I thought it was a very noticeable difference. That is comparing old worn out 10.87" disks vs. brand new 11.75" disks with new pads, but the same old calipers and fluid. I'm not exactly sure of the vacuum numbers you need, although I believe 12" is borderline for power brakes. If you want to go that route you might have to install a vacuum canister. Or go hydroboost, as that seems to be the latest and greatest.

Robbie2734 said
Brakes work much better, I would like to know what is a good pad. It's time to replace the old ones and I'm looking for a good hi performance pad.

Depend on how high performance you want to go. Anything semi-metallic should be fine for a driver/street car, I just stay away from the "organic" pads as they don't tend to perform as well. Firm Feel sells carbon metallic pads, which are a great high performance pad. But they're pretty spendy as well.