Quote:

Just finished off a disc conversion using..

10.9 inch rotors - new
72 ebody pin calipers - new
72 ebody spindles (w/bearing adaper) - new
1 1/32 master - new
all new lines and hoses

10 * 1/3/4 drums out back, not new but in great shape.

no combination or proportioning valve.

Brakes just suck - low but hard pedal and I gotta stand on it to stop the car..

Brakes are bled I guess - no spongy but low and hard as hell pedal.

I know a combination valve is in order but will that fix the feel of the brakes? - which year/body valve should i get? Will a generic under master cyl gm unit work?

I guess I need a residual pressure valve in the rear lines as well - will that fix the pedal height?

What steps should I take to resolve this - I don't want to just throw a bunch more variables into this system and never get it right..

Thanks
Plaz





What makes you think they will work without either valve in there?

How do you have the lines junction ed together now?