vacuum brakes
Thread Starter
Instructor
Joined: Aug 2008
Posts: 189
Likes: 0
From: petersburg il
vacuum brakes
i have a 434 small block in my 91. i changed carbs from a holley 850 to a edelbrock 650 and lost the vacuum boost on the brakes. i have vacuum at the carb rear port and at the last fitting that goes into the brake booster. i put a vacuum canster on but still no brakes. i have not taked a vacuum test yet but with the cam thats in it should be 14 or less. any help please. thanks to all that have helped me with my on going problems
