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68racer · 06-26-2023, 04:57 AM

I agree with contacting Tobin. Are you using a booster? The proportioning valve needs to be correct for a disc/disc design as the rear discs require more volume of fluid than drums.

06-26-2023, 04:57 AM	#5
68racer Yeah baby! Join Date: Feb 2001 Location: United Kingdom Posts: 436	Re: what size master cylinder bore I agree with contacting Tobin. Are you using a booster? The proportioning valve needs to be correct for a disc/disc design as the rear discs require more volume of fluid than drums. __________________ 11.37 @116