I think you are wrong here. The reason why the Colts keep losing to the New England Patriots each year in the post season is because they were always playing away! I remember the reports of the Patriot's ground crew icing down their field so that it wasn't fast and be difficult for a fast team to play on. Gillette Stadium in January has to be one of the worst places to play in the world, and has given the Patriots the advantage. This game is being played indoors, in Indianapolis where the field will be lightning quick.
And last year, the reason why the Colts lost to the Steelers is that the Colts has too much time off. Kinda reminding me of what happened to the Buckeyes when they lost to Florida a few weeks ago. Remember the Colts stopped really playing AFTER their perfect season was ruined by San Diego last year. When they came to play for the playoffs, it took Peyton, Marvin, and Reggie almost and entire half to get caught up. We know that the Colts are caught up. They just beat the best defense in the league in Baltimore. They won't be outmatched in this game by any stretch of the imagination. They are ready to play, they are clicking (even though Peyton's numbers don't exactly agree here, but you can trust that he will be ready tomorrow), and they have their homefield (with all that artificial noise being played when Brady is on the field).
New England is beatable in the playoffs, they lost last year, and they will lose this year. If Indy does lose, it won't be a blow-out, I can guarantee that.