408" with 6-8 lbs boost

500 hp 408 stoker and 8 pound of boost could easily add another 200 hp. That's where my mind when.

Have you done much research on what it will take to boost a chry sb eng.
I spent 2 year researching it for my 340......In the end, decided it was way too rich for my blood. Built me a high compression 408. If you have good welding skills, it will be much cheaper!
Every one i talked to said dont' build your first boost eng with a eng that you care about. You will burn up at least one in the learning curve.
Then there's the throw everything a way and go fuel injection........there is even more dollar sign.... and lots more learning, in my case.
just food for thought, not trying to change your mind