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In 1980, Alfa Romeo introduced the first _______ system to smooth a rough idle caused by ignition and camshaft timing changes.

Respuesta :

In 1980, Alfa Romeo introduced the first Variable valve-timing system to smooth a rough idle caused by ignition and camshaft timing changes.
Ferrari812

Answer:

In 1980, Alfa Romeo introduced the first valve-timing(needs precise timing, for piston valves) system to smooth a rough idle caused by ignition and camshaft timing changes.