what does the spark plug gap need to be on a 340 1.7?

also, can bigger (more powerful) ignition coils be used? i have one off a t5 laying around that i could fit. also, i did read somewhere if larger ignition coils are used that the plug gap can be made larger, giving a bigger spark, hence better burning of the mixture.

anyone know if this is the case?

no one?

off the top of my head around 0.8mm

0.8 sounds good to me

yes the gap is 0.8mm as i had to put some sparkys in yesterday

and also what you said about the bigger coil i beleive to be true as i was talking my manager in work and he is a very big petrol head and he does motorbike racing and thats what he was saying that a better coil prodcing a stronger current will produce a bigger spark which in terms allows the combustion in the chamber to happen more efficently

hope that helps