Ferrari president Luca di Montezemolo claims there is little to choose between his team and McLaren despite their big lead in the F1 standings.
Ferrari have been left behind by McLaren since Spain
The Italian team are 35 points behind in the constructors' championship.
Di Montezemolo admitted Ferrari needed to "recover the competitiveness that we have lost in the last two months".
But he added: "We are talking about two or three fractions of a second. We have to improve on these milliseconds here and there in order to be competitive."
Ferrari's Felipe Massa and Kimi Raikkonen are currently third and fourth in the drivers' standings behind McLaren's rookie sensation Lewis Hamilton and reigning world champion Fernando Alonso.
But Di Montezemolo said: "We have two strong drivers and we have very good
competitors and we must not forget in the first four races we were strong."
Raikkonen won the first grand prix of the season in Australia and Massa enjoyed back-to-back wins in Bahrain and Spain.
However, Raikkonen has failed to shine in recent races, while Massa was disqualified in Canada earlier this month for ignoring a red light on leaving the pit lane while the safety car was deployed.