OEM or Wilwood perportioning valve ?

[flyinlow]

I have converted a 4 wheel drum 1970 Charger to front disks using the disk-o-tech parts.  Now the brakes work better but the rears lock up too soon. No perportioning valve yet.  I have a stock 73 valve I took off my car 2 years ago (working fine) or just put an aftermarket adjustable one on ?

[FLG]

73 Valve should work fine, they were setup for disk front drum rear and since you have it, wont cost you a thing...worst case is you need to still go with an adjustable one.

[Ghoste]

Thats what I'd do too, if its working save your money and go with the oem one first.