How long does it take the computer to "learn" how to go, once its been reset?

Its been re-set when the Dizzy and Coil were replaced, after blowing last week, and I'm finding that the car is bogging down on take off.. (no low down torque) Seems to rev smoothly from idle.

The Transmission was serviced at the same time...

The computer will learn pretty quickly, normally the majority is done in the first few minutes, but it can take 100kms or so to get to its best tune.

Prob best to give it as many different variables as possible... i.e. try to give the ECU as many different load points and it will quickly fill the "gaps"

Kind of obvious but you checked the timing after replacing the dizzy?

Yes. the timing is Fine, (I had 2 people look at it.)

The suspect a leak in the inlet manifold, (Possible cos it wasn't done up very tight when the first guy checked it) or Plugs and Leads. (They are about due to be replaced.)

The main thing is that it was running ok beforehand....