Are you sure that the booster is good? Ive had a booster go bad and it was rock hard pedal. Bad master gave me really mushy pedal. Just because booster is new doesnt mean its good. On my moms Oldsmobile Cutlass Supreme went through about 6 bad masters right out the box before I got a good one. Similar deal once with an alternator as well.



1971 Plymouth Satellite
408/904 8 3/4 3.23 SG