How to install adjustable proportion valve and cancel OEM prop valve on 240z 260z 280z Datsun 

240z with front and rear Wilwood brake kits from silverminemotors.com
also, adjustable prop valve installed on the rear line.
www.silvermine...
at first front brakes were too strong. Then deleted the OEM valve and the rear brakes were too strong. Next, I installed an adjustable Wilwood prop valve on rear hardline and turned down rear brakes until perfect bias was achieved. Perfect bias is when front brakes lock up just before the rear brakes.
www.silvermine...
www.silvermine...