I've checked entry lists for the F2 races in that season, and there's no mention of the Pellin marque. However the car did take part in 3 rounds of the Italian F3 Championship -
1) May 2 1971 - Imola - Round 4 - DNF
2) July 24 1971 - Imola - Round 7 - DNF
3) Sept 19 1971 - Monza - Round 8 - DNQ