Don't listen to the above crap.
The phase sensor has a gap, 0.2mm to 0.3mm.
If it doesn't start immediately it needs looking at not bodging by disconnecting pump etc.
By all means look at the PHASE sensor, the earlt ones had crap insulation on the wires which basically falls off, later ones have 1 RED, 1 BLUE wire, the RED wire which is uppermost on the sensor goes to the point on the dizzy body through connector nearest to it.
Parts can be got from Matt Lewis 01922 692424, about £20 from memory.
This is accedemic though as NOT your problem, if it were it would not start and idle.
Does the car belch black soot or anything when trying to rev it ?, does it do no revving all the timeor just when hot/cold ?
What leads are you using, look for any broken disconnected pipes for air leaks.
tabetha