Low Brake Pedal, hard to stop

[67Vette427]

I bought the Hemi booster from Jim's autoparts last year.

I was out driving the car last Sunday, but got stuck in traffic and that cut my drive short. The cause of the traffice was this guy  involved in a police chase and crashed near the exit I was on. He got out with something and they shot him dead. The brakes worked good enough to stop the car and stay stopped until they diverted us all around.

Later today I'm going to put in on stands and check all the lines and adjustments. I also need to recheck the endplay in the Dana since I put all new seals in that last month.

Thanks for all the tips...

[67Vette427]

Update on the brake issue. The problem was the engine vacuum at idle. The low vacuum was causing me another problem with the dual 600 edelbrocks. A vacuum check at idle is right around 6"... The brakes really need around 8" and the carbs come out of the factory with 7" step up springs. I put some 6" springs in and that eliminated the rich problem caused by the low vacuum. For the brakes I'm going to run a vacuum motor and eliminate engine vacuum. :beer:

[Chryco Psycho]

makes sense to me