So I'm getting ready to rebuild a 340

Here are my thoughts. If you have your heart set on a stroker, go for it; but it will be expensive. On the other hand, you could build a screaming little 340 that will easily fry tires and run like a scalded ape. And you can do it with iron heads. It's all about parts selection. My 340 is at 375HP. It has lots of power, sounds great, is very reliable, and is not stroked. The recipe is a Comp XE268 cam package (with new springs), Edelbrock Air Gap Manifold, Edelbrock 750 carb, headers and a good dual exhaust with low restriction mufflers. The heads are stock with the 2.02 intake valves and were not ported. Also, get your hands on a book called, "How to Rebuild Your Small Block Mopar". It will be a GREAT investment.