Im having some problems guys, i thought my master cylinder was out on my car, cause when i go to brakes hard, the pedal would get hard and it wouldnt stop, so i had the master cylinder changed and its still doing it..Now im thinking maybe im not pulling enough vaccuum and thats why its causing it to do that...what do you guys think?

 

check MAP sensor,brake booster line and manifold for leaks

 

i was thinking of putting a vaccuum canister on the car..do you guys think that would be something to try?

 

Start by checking the vacuum at the booster, and check the booster for leaks. Did it start doing it immediately after your cam swap?

 

it does seem like after my swap it started doing it..

 

Put a gauge on it. Stock cars should run 15-18" at idle. As the cams get bigger it gets worse from there.

 

i suspect that cam isnt very big from your dyno numbers, so there is no reason you shouldnt have enugh vacuum for brakes, ect...check for a vacuum leak or possible leaking booster

 

my cam is a 233/239 .595/.605 on a 112..i do have 126K miles if that makes a difference..

 

mileage maybe a factor, but you would be hard pressed to put those numbers down if the motor was hurt

 

thats what i mean..soo i dont know..im gonna borrow a buddies vaccuum guage this weekend and see what happens..