[blykins]

A camshaft swap is not necessary. However, I would recommend it. Anytime you add displacement with the intention of keeping the same powerband and heads, duration needs to be increased.

If you're still using the stock 5.0 top end (heads, intake, cam, etc.), then you probably won't see much of a difference in horsepower with a 347, but the torque will go up.

The computer will still function correctly. The worst case scenario is that you will need to have a tune so that the computer can know how to handle the added displacement in the most optimum manner.

I would recommend finding an engine builder in your area so that you can discuss the machine work/assembly with him. If he's doing all the work, he can probably cut you a better deal on the stroker kit than I can.