Ferrari will bounce back from their below-par performance in Monaco to contest victory in Sunday's Canadian Grand Prix, says driver Felipe Massa.
Massa believes he can beat McLaren in Canada
Rivals McLaren took a dominant one-two in Monaco, with Massa a distant third.
But Massa believes Ferrari will be a force in Montreal and at the US Grand Prix at Indianapolis a week later.
"The F2007 will run as a very strong package in Canada and actually, also in Indy, where Ferrari has also had good results," the Brazilian said.
It is widely believed that Ferrari struggled in Monaco because their car did not suit the tight confines of the street circuit.
The Ferrari has a longer wheelbase than the McLaren, which puts it at a disadvantage on a track that is predominantly made of slow corners with limited chances of driving at high speed.
But the Montreal and Indy tracks are higher speed layouts which should suit the Ferrari's design.
There is no reason why we should not be able to fight for the win in Montreal
Ferrari sporting director
Ferrari sporting director Stefano Domenicali said: "We believe we will have a strong package for this event.
"There is no reason why we should not be able to fight for the win in Montreal after a weekend in Monaco where our performance did not accurately reflect our potential."
Ferrari have lost their traditionally rock-solid reliability this season, and Canada has a reputation as a car breaker.
Its long straights put a strain on engines, and adding to teams' worries are the fact that most will be using in Canada the same engines they used in Monaco.
F1's rules demand that engines last for two entire Grand Prix weekends, and Canada is the second event in the two-race cycle.
But Massa - who heads into the race five points behind the McLaren drivers, who are level at the head of the championship - said he was not concerned.
Ferrari had a disappointing weekend in Monaco last month
"Although you can never be 100% sure, I think we have an engine that is strong in terms of reliability and added to that is the fact we did not push it too hard in Monte Carlo," he said.
Canada is a crucial race for Massa's team-mate Kimi Raikkonen, who has slipped to 15 points off the championship lead after a series of poor races.
Follow the Canadian Grand Prix live on the BBC Sport website and Radio Five Live. Qualifying is at 1800 BST on 9 June, with the race 24 hours later.