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Does anyone know the best way to get 17 to 22 inches of vaccum with only 14 from the intake. I installed a ssc vaccum pump and it is not reliable enough do to relays or bad switchs causing poor braking sometimes? Thanks
 

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Does anyone know the best way to get 17 to 22 inches of vaccum with only 14 from the intake. I installed a ssc vaccum pump and it is not reliable enough do to relays or bad switchs causing poor braking sometimes? Thanks
I dumped the SSC pump and installed a manual master cylinder from a Ford Ranger as suggested on this forum. Works great once I got the right pedal to master cylinder ratio.
 

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73 mustang with a 466 and with only 11-13 vacuum from the intake and i am using power brakes just fine. so as it seems!!!
 
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