They really sorted it out well, idles much more smoothly and pulls strong, on boost from 2500rpm. Wisecos Pistons and Cometic head gasket are the way to go - Thanks Garrett.
Unfort my 320cc injuectors are maxing out (83%) at just under 5000rpm and at 4750 the fuel pressure is dropping off, which means the fuel pump aint up to the job.

We have set the limiter to 4750 till i get the new pump fitted next week and i stick in the bigger Ford injectors (400cc) that i showed previoulsy in this thread.
Have said that, the Woo made 157bhp @ the wheels at 4750. they say it should make another 20+ horses, a around 180 horses at the wheels.

I must admit i was driving like a hooligan on the way to work this morning.
More info next week.