Stroker 340>416 Build Advice
Tell us more about the car, and your intended driving style. Many very knowledgeable people on here, they are going to want to know weight, transmission, gearing, elevation you will be using it, etc, etc. The more info at the start, the less chance of the post going off into the weeds. Budget allowable also helps. Give us a bit more, we will help with answers.
What is expected HP outcome?