The Twin Spark Engines In Alfa Romeo have been in use for some years. these engines are difrfrent from each oter and it depends on what sise,, 1.6 or 2.0 or even V6 so without any information what engine you are talking about this question is not able to answear .
Never heard of twinspark v6. But certainly 1.6 1.8 & 2.0 Cant tell you about timing marks but if changing cambelts etc. would not attempt without using "CAM LOCKING TOOLS." It's the only assured way if you want to do it right. Good luck.
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i dont know,it doesnt have marks on it
Alfa Romeo is a car
Alfa Romeo was created on 1910-06-24.
Alfa Romeo is Italian.
Alfa Romeo is made in Italy.
Alfa Romeo makes their own cars.
Alfa Romeo Giulia was created in 1962.
Alfa Romeo Arna was created in 1983.
Alfa Romeo MiTo was created in 2008.
Alfa Romeo Alfetta was created in 1972.
Alfa Romeo Proteo was created in 1991.