Vacuum Booster or Not?

I'm going to be installing kelsey hayes disc brakes on my 65 Dart in the near future. I have a 1972 booster and master cylinder, but I'm trying to decide whether to use the booster. It's freakin huge and might look out of place under the hood of a 65.


Currently I have drums all the way around. 10" in front, 9" in the rear and a single circuit master cylinder. I'm getting used to the drum brakes. Maybe they're working better with use, or maybe my leg muscles are getting built up. But I'm sure I would never be happy with them. Someday my daughters will be old enough to drive the car but I wouldn't feel good about that with manual drum brakes.


My question is this: Will the braking effort be noticeably less just by upgrading to disc brakes and a dual circuit master cylinder? Or do I need the booster in order to notice a significant reduction in pedal effort?

I could try it both ways but I think that means buying another master cylinder and re-bending the brake lines. I would like to avoid doing the job twice.