Wilwood Master Cylinder

[440dartsport]

I want to order a new Wilwood master cylinder but I'm not positive on what bore size to order yet. 7/8" or 1" The car has manual brakes with Wilwood 4 piston in the rear and stock discs up front. What do you guys recommend?

 

[1967 'cuda]

When it came time to choose a master cylinder for my '67 (stock front and Right Stuff Detailing rear - manual), I called up Right Stuff Detailing for their advice. I was told that in order to have the correct pedal feel I needed a 15/16" bore. I'm very pleased with the results. I guess if I were you I'd probably hit up Wilwood for their recommendation.