Id be fucking the ABS off bud , thats the main difference . Have done at least 10 of these setups when I was at PBMS . None with ABS never had one issue . Done 2 of my old Datto 1600s no issue . S13 Silvia for a mate no issue . Tx3 turbo rally car no issue . Gemini using hydraulic drum brakes No issue .


None had ABS and None used the factory proportioning valve all had Willwood or AP manual adjustable valves.