hi folks

got a wee prob with the car, when it starts up i need to hold the revs at 2000rpm or it cuts out and doesnt hold tickover?
ive cleaned the plugs up as it was only starting on 3 but now its doing this? the car has an afr computer in it and its reading lean on start but after bout a min its ok?

the car aint been set up in a while and has just had a new bottom end put in too.

cheers lewis