Mk3 brake servo/cylinder onto a mk2

[madmanluke]

I have just or my new donor car for
my vr6 convertion.
I have only just recently upgraded to 256mm 16v set up but have always had a squashy brake pedro even when running my old 8v brakes.

Does any or know if I can do a straight swap with the mk3 item to I can bring the feel and performance of my brakes back up to scratch? Thanks

[rubjonny]

did you replace the master cylinder with a 22mm one?  if so check the adjustm,enty of the rear brakes. when you bled them did you clamp open the rear brake compensator valve?