i am guessing because of vacum..anyway to fix them

 

Good question...I havnt tested mine yet.. EEK.

Brakes suck bad? or just a little worse?

 

well for me they are pretty bad...i have to put both feet on the petal or pump them to stop quick. i dont have abs and cant even lock up the tires

 

Thats reassuring.. any vacum leaks that you know of???

 

If manifold vacuum is to low you can install a vacuum tank. It will solve the braking problems. Does it feel OK at high rpms but bad at low rpms? If so jut install a tank.

 

I can't even tell the differance after my install. like the previous post said.......Is it only at low rpm's or high and low? Make sure the rubber grommets on the booster and intake are in good shape. I would bet it's a leak somewhere. JMO

 

check for leaks, i have a cc306 with ported heads and i have great brakes

 

does that vacume hose that comes out of where the fuel lines are do anything? also i dont have the air pump any more, but i am pretty sure that doesnt do anything

 

evap canister

 

There is a vacuum line that runes from the intake manifold to the brake booster. Is it there and is it in good condition?

 

A.I.R. pump has nothing to do with vacuum or brakes. It is there to help with emmisions. I no longer have mine either, like I said I have grreat brakes.

 

i got the car back today, and the brakes are only bad when i am ideling, if the rpms are up they work as good as before.

off topic but it is my post
what RPM do those of u with the 306 idel at in gear and in park?

 

I had Ion tune my for 900 in gear...... 925 in park.

 

My brakes suck too. Similar cam to 306. Just low vacuum at idle. I pull barely 10 inches. Get a Jegs or Summit brand vacuum canister. They're inexpensive ($50 or so) and do wonders for braking ability.

 

I got my brake booster hooked up tonight. My brakes are awesome..those with sucky brakes need to check for vacuum leaks!!!!!