Uhh? The VP cap is 1250 a week. You can do only 7 dungeons worth VP, so the MAXIMUM you can get outside of raids is 980. To hit the 1250 cap each week you'd have to raid and down 4 bosses on top of the 7 troll dungeons.
If you do 7 normal heroics, then the maximum you'll get is 490 VP. You can't stack them with 7 troll dungeons.
As a side note, the VP cap has always been 1250 since they were introduced. I'm not even sure where you got 1470 from.