This is a complete bolt in kit that uses a modern power booster and dual circuit master cylinder mounted to the firewall using the bolt holes for the factory air box. It includes a new brake pedal that swings from a higher location (looks like it could be original too). A modern GM booster and master cylinder give a significantly improved braking feel and power while adding safety through the dual circuit system. 
 
This can be used with factory drums, disc/ drum or disc/ disc. Let me know what brakes you have at check out and I will send the correct proportioning valve. 
 
It will have the pedal feel of a modern car- minimal effort required with a positive and firm feel. No more soft or sloppy pedal! 
 
Installation is fairly straightforward- no cutting of the firewall is required. Takes about 2 hours to install. You have to remove the driver side air box, master cylinder, original bake pedal, and then this kit bolts in.
 
Brake booster options: 
-9" single diaphragm vacuum booster in gold zinc. This is the best optoin for drum/drum brakes. Anything more will feel too powerful. This is what's pictured here on the website. 

-9" single diaphragm booster, in chrome, otherwise same as above option 
 
-11" single diaphragm booster in varying finish of gold zinc or black powdercoat. This is the best option for disc/disc or disc/drum. This booster is considreably more powerful than the 9" booster. Our supply of the finish is inconsistent so we provide which finish is available. 
 
-Hydroboost. This booster uses power steering fluid rather than vacuum. It is our most powerful booster, and over kill for most applications. The booster housing is longer so it may cause minor interference issues. This is best for high horsepower applications without a good vacuum source and with front disc brakes. 

Proportioning valve optoins: 
-PV4 works for drum/drum or disc/disc. It proportions the brake fluid pressure eqully front and rear. 
-PV2 works for disc/drum. it proportions the brake fluid pressure with a front bias. 
 
Included parts : 
Firewall box 
Brake pedal bracket, goes through air vent hole 
Brake pedal W/ Bushings and rubber pad 
GM style brake booster
GM style master cylinder 
All new high quality bolts 
2X 3/16" brake lines- custom cut, bent, and flared
Proportioning Valve + metal lines (mounts beneath MC, pictured)  
3/8 Vacuum hose
Water drain hose, same style and function as factory 
Misc. hardware 
 
All metal parts are CAD designed, laser cut, formed on a computer controlled press brake, professionally welded, and painted satin black for consistent high quality results.