What should my timing be

I have recently changed my engine for a metro engine, the engine number is 12h907aa
a metro a+ 1275

i'm unsure which dizzy i have in it but i no longer have points as i've bought an
electronic ignition kit off ebay

every thing else is standard (cam,rockers etc)

so my question is what ° btdc should my timing be at?

currently it's 13° btdc and i'm not sure where i got that from

please someone help

off the top of my head i'm not sure but haynes should tell you

do it by ear.undo the dizzy and turn the dizzy to the left till you hear it hunting then turn it to the right till it hunts turn back to the middle then you will hear the revs pick up slighty and even out then lock the dizzy then you should be spot on.

aye thats how i do it lol

im going to have to remember this tip very usefull indeed