I have a mk5 fiesta zetec s, with racing puma rear beam + disc conversion.

Running standard 253mm set up at the front at the mo!

My back end is a little twitchy under heavy braking!

I bought a 300mm conversion for the front, which i'm guessing will make matters worse!

So got a wilwood brake bias valve! I've no idea how to plumb it in! I'm no mechanic, but learn by giving it a go!!!

Can anyone give some advice, or has anyone done this before?

I'd guess i'll have to make new brake lines. 1 line to the front brakes from the master cylinder with a t section, then from the other output of the master cylinder to the rear via the bias valve inside the cabin????

Thanks for any guidance or advice!!