My car is full of mods from the 302 to a T5 trans and then 4 wheel disc brakes with hydroboost break assist.  Since you asked about the brakes here are a couple of posts I made in the past, the first one from the original forum and the second one on this forum.
 

on October 17, 2011, 9:17 am Daze wrote:

 
woah!!!  I can stop on a dime AND give you 5 pennies and a nickel.  All the details start to finish
 
WOW!!!  I love my new hydroboost power brakes.  If you want to stop, you stop right now!! 
 
My set up consists of a mid 90s Chevy S10 hydroboost, 67 corvette master cylinder and home made lines using ends and lines from aeroquip.  The power steering pump is a stock unit.  I have T-bird front discs and MarkVII rear discs. 
 
The project started by working on getting the hydroboost unit to be correctly spaced on the fire wall and still maintain the correct pedal height with out having to modify the hydroboost push rod.  I happened to have an extra Galaxie pedal support and pedal and bolted it to my hydroboost unit to mock things up. 
 

 
Once the hydroboost unit was ready to go in I turned my attention to the car and began installing the Mark VII rear discs.  The brake parts were previously installed on my Mustang until  I swapped out the Mustang rear end for a Jag rear end.  I spent quite a bit of time cleaning up and painting the Mark VII parts.  The brakes only had about 1000 miles on them from their time on my mustang, but there was quite a bit of rust and dirt to clean up on them.  Once I had them ready to put together I pulled the drum brakes apart on the Galaxie and starter installing the
 

 

 

 

 
With the rear discs installed I removed the old Ford master cylinder, then mounted the corvette master and the hydroboost unit in place and plumbed the brake lines. 
 

 

 

 
I then added a small oil cooler to be used to keep the power steering fluid cool. 
 
 
 

 

 
with all the pieces in place I made the high pressure power steering lines and ran them.  Then I ran the low pressure lines.  The original line from the power steering unit went to a T.  the low pressure line from the hydroboust unit also went to that T and then a single line went out from the T to the oil cooler and then back to the return port of the power steering pump. 
 
With it all hooked up, I primed and bleed the power steering system, and then tested out my new power brakes.  The results were less than spectacular.  When you first fired up the car the brake pedal would drop about 1/4" creating a slight brake drag.  as soon as the car was turned off the pedal would come back up to normal height.  Also the brakes were ultra sensitive.   
 
I had purchased some fitting for this project from hydratech so I contacted them and told them what parts I had in my system.  Shortly after I sent the email I heard back from Paul at hydratech.  He was extremely helpful and new exactly what my problem was and what the potential fixes were.  On a hydroboost unit to much back pressure on the return line will cause the pedal to self apply.  He gave me a quick test for confirming that back pressure was indeed the issue and a list of 4 possible causes of the extra back pressure.  Turns out I had all 4 and even when eliminated I still had to much back pressure.  The solution was to ditch the T and add a second return line port to my power steering reservoir.  To do so I took a 3/8" bolt and machined it to be a thread in nipple. 
  
 
 
I then drilled and taped the reservoir to accept said nipple 
 

 
I chose to tap the hole in the reservoir for two reasons.  I wanted to be able to thread it in from inside and I wanted to be able to use RTV as a thread sealer to avoid any leaks.   
 

 
From there a nut and some more RTV was applied to the outside and tightened down. 
 

 
When I reinstalled the reservoir, plumbed it all back together and fired it up it performed flawlessly.  In fact I am so impressed I would recommend a hydroboost unit over a vacuum assist to any one who has power steering. 
 

 

 

Daze wrote:

 
The hydroboost in my Galaxie just got a whole lot better
 
When I set it up originally I used a Corvette Disc/Disc power MC.  It worked well, I could stop on a dime but there was one small flaw.  The top of the pedal pressure felt odd, not spongy like there was air in the system... but odd.  It was almost like the brakes were slow to grab then after the pedal was pushed a little further they would grab no problem.  The other issue I was having is if I got on the brakes hard (simulated panic stop) some fluid would push its way out of the top of the MC cover.  to solve these issues I decided to get the MC from the same make and model that the hydroboost came from (94 Chevy C1500)  It was a quick swap this morning, a little reverse bleeding and I was off to a test drive.  I couldn't be happier with the results.  the brakes were really good before but now they are 10 times better!!!!!  The new MC is not as flashy as the corvette one, but I like it that way.  It tones down the whole system and makes it blend in to the engine bay.
 
Before

After

 
 

Not sure why the pictures weren't loading.  try loading them again.  if that doesn't work email them to me and I will load them for you.