LOL Fieldy, don't worry about it, most of it go's WAY over my head too

What you need to do is make sure the gearbox in the Ka will mate up with the new zetec engine you're getting, from what I can gather from afireinside sounds like the Ka uses the same gearbox anyway

BEST thing to do is give one of the tuners a ring, or even someone from Burton Engineering and they'll be able to give you a proper answer

Would say its DEFFO worth changing the brake set-up and probably get a fast road clutch as well

Let us know how you get on though, would love to see some pics when its done