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Old 04-14-2013, 09:20 PM
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Now what ?

Plenty of brake pedal until I start the engine, then it goes almost to the floor. Power brakes with a single diaphram booster (new), new master cylinder, and new hoses. Disc front/drum rear. The vacuum hose is currently hooked to the port on the back of the carb.

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Old 04-15-2013, 08:07 AM
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What's your pedal ratio?
Did you drill a new hole in the brake pedal arm 1 1/2 inches below the stock hole?
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Old 04-17-2013, 05:30 PM
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Now What ?

I don't think pedal ratio is the problem. The have been working fine, then all of a sudden the problem appeared. I have the proper Proportioning valve and residual valves.
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