[bignoze]

First off 250hp at the wheels is like 330hp at the crank, not shabby but not great either.

if the block is .030 over bore than you have 393 in displacement. You really dont need a storker kit becuase it already bored over. Next, your Cam is small and your heads could be better. You could get a new cam (Comp XE), heads (AFR they way to go here $1,400), and an intake (RPM Air Gap) then you could produce some serious HP. Like $2,300 in part total. Cam will determine HP and RPM in that setup.