Front brakes not releasing

[Boats90GT]

1990 GT, Front brakes (both) not fully releasing . Car had the issue when I bought it so threw money at it with new hoses, calipers and pads, inspected and repacked bearings. Still not releasing fully. Car came with Wilwood proportioning valve so the factory one is long gone. Would like to remove that and put back OEM one but anyway. Anyone know what else I can check? Also just realized when I start the car they release but when I hit the brakes with car still running they don't fully release, Kind of doesn't make any sense. Thanks

 

[nickyb]

When you bleed the calipers how was the flow? Could be kinked/clogged line.

 

[Boats90GT]

When you bleed the calipers how was the flow? Could be kinked/clogged line.

flow was good no issues.

 

[rednotch]

What master and booster? The push rod probably needs adjustment if nothing else is causing it to hold pressure.

 

[FastDriver]

Bad booster or caliper? Both sides binding? Doesn't have a line lock, does it?

 

[nickyb]

Also check that the calipers slide on the pins freely,they maybe hanging up