Power Brakes

I pretty much agree with Early a body. Here's a picture of my motor from 1969. Kinda cuts off the right side, but you can sorta see the single master cylinder, the power booster behind it and the vacuum canister on the inner fender. It actually worked pretty well. Believe it or not, when I first got my 65 Barracuda back in 68, I wasn't used to power brakes and almost locked up the brakes the first few times I used them. I finally got rid of the setup at 150-200K or so when the vacuum booster failed and it was gonna cost a fortune to rebuild it.

65 Barracuda motor 1.jpg
After I swapped in front disc brakes, I used a power brake booster from an early seventies A body. Like Early A says, the booster/dual M/C sticks out halfway to the radiator support. I had to slightly modify the booster mounting brackets in a way I don't remember, but given the limited tools I had then, it wasn't too much. Here's a shot of this setup from the passenger side. Doesn't show everything, but you can see how far out it extends.

65 barracuda motor 2.jpg

I've done without power brakes for a long time, now. In an A body I really don't think you need them. Present setup:

65 barracuda motor 29.jpg