Definitely call here especially knowing V2 is likely a good player who came with 600 from a broken table and took time to think about his play. He likely has a 4-bet range that is wider than just AA. You have already put 1/3 of your chips in. You have basically let him know you are pot committed to your hand. His big shove is likely designed to get him heads up with you and chase out the second villain. That suggests he is worried about his hand being called by say a weak ace or a small pair. He wants this to be heads up. If he calls, villain 2 is likely to call and the pot will be 420. You will have only 310 left and will likely call any flop not containing an ace. He could easily have QQ or JJ in this situation.

"Anyway, hero wakes up with 2 red Kings in the SB. V2 UTG raises to $40, folds around to me, raise to $140. V1 in BB tanks for 3 mins then shoves for $700, V2 SNAP calls, 100BB for hero to call".

How often do you see action like this at this level ? My answer would be almost never.
If it's me at a 1/2, 1/3, 2/5 game I have to fold. When a player sticks in $700 and another player that already raised 13bb utg SNAP calls I am folding. It just smells like AK vs AA. if I'm wrong, I'm wrong.

I fold and take extra care not to expose my cards when doing so.

Never folding here. V2 is a weak player who will often try to steal with big bets. That is what weak players do. They see others doing it but they do not understand any of the positional strategy to the game. Their big bets just don't make sense. Maybe they have AA and were acting when tanking for three minutes but not likely. They likely have a pair like TT or AQ. V1 who clearly doubled up and may even have broken the other table is clearly the bigger threat. But his shove behind an all in from a bad player just means he has a premium hand, but in no way means he is going to fold everything but AA. I wouldn't be surprised if they both have AQ or pocket pairs 99 to QQ.

???

+1 Solid logic. Cry a little and fold.

You're betting $450 to win $1350. Even if it's bad like AA v KK v QQ, you're ~18%

Net present value of the bet

.18*$1350 = $243
.82*$0=$0

The bet is worth worst case $243. It's costing you $310 to call and there's plenty of scenarios where you're ahead.

To put it another way, you're calling $310 to win $1350 with the second best hand in the game.

In reply to Garick - In my first post I had confused the table positions of the two villains. That is why I tried to correct myself with the second post. But, i should have pointed out my error in the first post. The V in BB is a weak player who has shoved several times and is perceived as bullying the table. The stronger player is V in last position who had come from a broken table. But it seems like he is just playing his cards and not spending much time evaluating the other players. Sorry for the confusion. So I believe my second post is the correct one.