the formula Italia had the 1608 cc engine with 2x IDF weber .The formula Fiat abarth have the 2000 cc lancia /fiat with 2 x weber DCNF newbielink:http://www.abarth-gmr.be/forum/index.php/board,196.0.html [nonactive] have look in magazine for more info about both models newbielink:http://www.abarth-gmr.be/forum/index.php/board,99.0.html [nonactive]