A 331 will always have new pistons, so it's easy to set them up for the larger valves. Also, a strokers will create more torque by virtue of the longer stroke, so that will make up for some of the loss at lower RPM.
Personally I could care less about torque under 2,000 rpm, if my engine will idle and it's a monster past 3,500. I think most people building strokers have a similar mindset.
The 185's are the biggest AFR's without a raised exhaust port, so you can use stock style exhaust and they won't turn in to a restriction unless you spin it really high, so it fits the bill nicely.
I really like the way the cobra intake looks, but everything I read and everyone I talked to said that it would be a bottle neck on a stroker with good heads. That is the reason it's going to stay on my smog motor and the roush will go on my stroker. Lots of people choose the holley systemax or a trick flow R (I think) for the strokers and have good power #'s.
