Originally Posted by BlueNowhere
Depeneds on BBs stack and what you perceive his calling range to be. Estimate his calling range and look at how much equity you will havev against it. Then use this equation to work out if it is +ev:
Equity = (%folds*money won when folded) + (% calls((Pot when called*equity)-Invstment))
If you get total equity to be +ve then it's a jam. Generally I'm jamming 89s though. Justt play around with pokerstove and formula I gave you to find what cards you can profitably shove in certain spots.
The critical part of this is estimated calling range of opponent and realize that this is not universal ... some opponents will call rather widely (any Ace, QJ+, any pair) and others call far more tightly (ie 77+, A8+, KQs) so this will completely affect how you can shove on specific opponents.
Also, stack size of opponent is critical. Remember - best to pick on mid-sized stacks vs those too short or those too big.