The Reds are aiming for a first away win of the campaign at Ewood Park and Montanier believes that his men are in excellent shape, both physically and mentally, ahead of the trip to Lancashire.
Speaking ahead of the game he said: "The players did very well on Friday night and they are in a confident mood right now. We are already looking forward to the next game and we go there looking for the three points.
"Playing attacking football does not mean we should keep conceding goals. We felt we looked more solid in defence against Birmingham but, as I said, I would rather win 3-1 than draw 0-0 so we will keep going forward.
"Blackburn are in need of points, especially at home, so we need to be careful. They can go from back to front quickly so they will be dangerous but we are confident right now. This game presents a good opportunity for us."
Nicklas Bendtner suffered an ankle injury in Friday night's win over Birmingham and as Montanier confirmed the problem is not as bad as first thought, he also revealed another piece of positive injury news.
He said: "Nicklas will be out for between three to six weeks with an injury to the ligaments in his ankle. We're obviously hopeful that it is the former and Nicklas was in good shape before he got injured so we hope he'll recover well.
"Britt Assombalonga will be in the squad tomorrow night. He is absolutely desperate to play because he's been knocking on my door telling me he is ready and now I agree. We know he's always got the capacity to score a goal.
"Apostolos Vellios is progressing very well. He is adapting to English football and scoring goals now which is very pleasing. We knew he has great ability and now he looks very confident in front of goal which is good for us."