[dahkahuna]

Recently I did a conversion on a 66 chevy truck using a power brake booster, proportioning valve and dual master in a kit form based on a 69 camaro type unit. I spent hours trying to bleed the air out of the system using the old pump-it-up and hold the pedal pressure, then open the bleeder,without any sucess! Then I read the instructions on how to bleed that type system disc& drum and it said to open the closest bleeder and slowly push the pedal down to the floor and hold it , then close the bleeder. this centers the proportioning valve and lets the air move freely from the system. repeat the above directions paying attention to any air bubbles leaving each wheel, always check the fluid level to keep it full after each wheel is bled. Don'ty release the pedal till the bleeder is closed each time( remember no pumpin the brakes!