Grayson's View: Norwich (home)
North End easily found their way into round four of the competition thanks to Paul Gallagher's brace in the second half of the game at Deepdale.
But although pleased with the result in the FA Cup, Grayson recognises that it's the league and promotion from it that must take priority, even over the JPT area final against Walsall coming up this week.
Speaking to the BBC, Grayson said: 'It's very pleasing to beat a Championship team looking to get back in the Premier League.
'Our keeper hardly had a save to make all game.
'The FA Cup is a fantastic competition but it's actually our lowest priority. The club is geared for the Championship and we want to get back there, and we have a semi-final on Wednesday. But doing well in the cup breeds confidence and momentum.'