Brakes pull right, Brakes pull left, I want to stop straight.
Quick history, 57' Chevy with 69 GM (Camaro) ft. disc, 57' rear drums, 79' Vett booster and M/C with 72' Nova proportioning valve. All worked great until the M/C went out. I replaced it with a new Vett unit. Now the brakes are sensitive, like the E-brake is part way left on. On slow stops it's straight, but on high speed stops it pull left OR right (scary). I don't know if it's the brake sys. or the 605 P/S box is going out. (Kinda like bump steer with the brakes.)
I don't know if the M/C has a 2lb./ 10 lb. or 2 lb/ 2 lb or no checkvalves.