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**Captainfab** · 03-12-2018, 11:52 PM

It sounds to me like the issue has to do with either the booster or the vacuum pump. How much vacuum is the pump producing? Do you have the vacuum pump plumbed directly into the booster or is it plumbed to a reservoir?

03-12-2018, 11:52 PM	#6
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,246	Re: Weird Brake Issue It sounds to me like the issue has to do with either the booster or the vacuum pump. How much vacuum is the pump producing? Do you have the vacuum pump plumbed directly into the booster or is it plumbed to a reservoir? __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE