[400TT]

Rob, Pedal Ratio is measured from the centre of the pedal.

I expect you already know this, but with the stock brakes and stock pedal/master cylinder setup you will have too much front brake. Either look at swapping/modding that production master cylinder to make the front section larger or fit calipers that have smaller pistons in them. Something like Nissan Skyline etc calipers or Wilwood with the correct piston size.

We've been through this before on my old RMC and can probably dig out the piston size we calculated were needed for the front.

This is all assuming stock rear brakes.