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Re: need help with brake booster
The 7" dual diaprhagm booster is better than a 14" single diaphragm booster, they provide the same assist as a 14" single but require a lower vacuum level to achieve the same amount of assist. Since your running a Turbo the cam in engine is probably not a Extreme cam that would provide extremely low vacuum so the 7" should be more than enough booster for you.
GMCPaul
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