Hi im new to the forum and i got a 81 buick regal with a 350 chevy in it and im having trouble getting a good pedal.ive replaced master cylinder,propvalve,calipers,and wheel cylinders.pretty sure i have bleed all air out of system.when car is not running i have a good hard pedal but as soon as you start the car the pedal goes to the floor.im now leaning towards the cam causing my problems and was thinking of adding a vaccum resivoir.im running a comp cams magnum cam with 470/470 lift with edelbrock airgap intake,holly street avenger 670,headers,proform roller rockers.my block is 30 over and im running flattop pistons along with stock 87-95 style centerbolt heads.is this cam profile large enough to be causing problems with my powerbrakes?.im at thebpoint that i dont know what to do next.
81 regal poor brakes when car running
- Thread starter ultraspxrider
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I'd bench bleed the master before anything else...with the master sitting on an angle it is easy to have air trapped in the master bore that you will never get out bleeding the wheel cylinders and calipers
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