Even for big power I'd stick with the B series.
Originally Posted by integraclownnu
If they can take a lot, then how much boost can I safely run on an engine with a stock crank, stock length rods, low compression turbo pistons and a bore of 2.0L?
With new sleeves? Just about as much as you'd like. In that scenario, you're going to be limited more by your head and intake manifold than anything else.
Offhand, I can't think of anyone who is using an aftermarket crank for stock stroke.