[Stroked408]

Man you are talking a black art there,de-stroking and engine,there are 2 ways you can go with your combo since you want to run 9's.

The easiest way to run 9's and not tear the engine up too bad would be with a supercharger somewhere in the 12-15 pound range.

I would stroke it in a heartbeat,somewhere in the 331-347 range,320-331 strokers are not bad either but since you asked here is what I would do:

331-347 stroker with a steel bottom end do not mess around here especially with the boost you are going to need.
8.5 forged pistons for reliability and durability,and also if you keep it tuned correctly you can run the other pistons,I wouldn't but you can.
AFR 205 or Victor Jr heads
Comp Cams XE282 cam
13/4 long tube headers maybe step headers full 3 inch exhaust
C4 automatic tranny with a trans-brake for when you go to the strip
Holley Systemaxx II or TFS R intake
50 pound injectors
aftermarket electronics
and maybe a parachute(lol) just kidding with that part
This is not very detailed but it is a start,gives you a small foundation to start with.

Good Luck