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Old 03-14-2009, 11:17 PM   #1
1972 orange c10
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Join Date: Jun 2008
Location: cullman alabama
Posts: 8
Need help with my brakes

I hope someone here can help me figure my brakes out. My brake pedal has gotten really hard to push since i took my qjet off and put a holley 670 strret avenger. I just thought it was the booster so i replaced the booster and mc and bled the brakes and it was good for a day or so and now its hard again. I took proportioning valve off a parts truck i have and it didnt help. Could the holley be sucking more vacum than the qjet. If anybody could help me i would appreciate and by the way this is a awesome site i get on here everynight and get in trouble for being on computer too long. Thanks morgan
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1972 c10 swb 406 buckets, tach, tilt, cruise, am-fm

1972 c10 deluxe highlander 350 tilt, tach, am-fm

1971 cheyenne 10 402, buckets, tilt, tach
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