The Maranello-based team had endured a frustrating period where fresh correlation problems between the factory and track had resulted in its form stalling.
Massa believes the Spa progress was a huge encouragement and that if the team can continue the momentum to the next race at Monza then it can look forward to a stronger second half to the campaign.
"I think we still need to keep working - put new parts on the car and try to make the car more competitive," explained the Brazilian.
"We missed some opportunities and some races where the bits were not working, and we lost a little bit of time.
"But with the car [in Belgium], everything we brought we were using – so I hope we can carry on in this direction. If we do that the car will be better.
"From now to the end of the races, we can be more competitive than we were in the first part of the season."
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