Sergio Perez says there is more to come from himself and the Force India package heading into qualifying for the Italian Grand Prix, despite showing top five pace in FP1 and FP2.

Both Perez and team-mate Nico Hulkenberg were in fine form at the wheel of the VJM08 in both FP1 and FP2, with both drivers splitting the Ferraris of Sebastian Vettel and Kimi Raikkonen on each occasion.

Despite this, Perez - who started a season-best fourth at the previous Belgian Grand Prix - says he isn't '100 per cent satisfied' with his car and hints there are gains to be had by both himself and the team.

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"The lap time looks good but I am not totally satisfied with the balance of the car," he said. "We did some changes from P1 to P2 and I was not 100 per cent satisfied with the car, so there is plenty we have to look for tomorrow."

Enjoying driving the Force India at Monza, with its superior Mercedes customer engine, Perez is nonetheless wary that it will fall on the side of a two-stop strategy come race day.

"I expect to have a great Sunday, for the fans it will be a very good race. Between one and two stop, some teams can definitely manage a two stop, others like us probably not."