One thing after another now the BRAKES

[Little6pack]

Come home from a day o drag racing trying to tune the T. Leave it parked in the garage overnight. Decide why not drive out the 104 gas going to work.

I back out & pedal goes to the floor & light on dash comes on.
I hear hissing & moaning coming from the dash area maybe behind the firewall.
I see firewall all wet & puddle in the garage. The puddle was not normal it looked like it was sprayed out.

Can I have some straight forward help on what I should look at.
Yeah I know the guy here will push his Hydrboost or the other vacum setup.

I would prefer to keep stock setup but if I have to go vacum then I will.

Thanks in advance for any answers.

 

[TurboJoe3.8]

Try this:
http://www.gnttype.org/techarea/brakes/brakespage.html

 

[Little6pack]

Try this:
http://www.gnttype.org/techarea/brakes/brakespage.html

Thanks just what I needed.
& this is what happened about 1 week prior >

With normal braking light comes on, goes off = Accumulator bad