Salve, dear friends!!!
My name is Marco and I am from Italy.
I have a fiat 127 mk2 I transforming in Abarth wuth a home rebuilt A112A2000 70HP engine with 5 speed gearbox.
The engine is standard factory and I think I will not mount Triger distribution because is too delicate than the chain.
I hope that my experience can make aid for you
I suggest you to visit newbielink:http://fiat127club.forumfree.it/
[nonactive], where many owners and entuxiasts write and exchange many opinions and suggests on the little Italian car