Luke1834

I swapped a turbo 400 into my car and now the brake peddel is rock hard and there are barely any breaks , I have vaccume pressure at the booster, the automatic Pedals I used were out of a 95 trans am I went for m6 in a 2001 trans am to a turbo 400 . I hAve the vehicle speed sensor and all the stuff that was on the t56 unplugged and tied up under the car ..... Any help would be awsome thanks