Did you replace the crank already. If your going to bore and replace the crank the 383 kit os the same price. Its less than 50 difference. Althought i wpuld recommend a few extra bucks for a balanced kit.
But its good bang for the bucks so usally worth the effort to source out.
Just a thought but if you are using efi and bigger cam you will need to retune for sure with stroker kit.
375-400 hp is a doable goal and will net put 300-350 to the wheels with the right cam and minimal budget.
Ignore me if your done building..... LoL