Stock Stroke Versus Stroker Combo !

Having broken a cast 4 inch crank running 10.40’s at 3300 ish pounds and driven over it, i would never recommend a cast stroker crank for anything that sees dragstrip use making 500+ horsepower. That crank had neverr seen a tbrake launch( Eagle)
For just a few hundred bucks difference you can sleep WAY better at night. And in the whole scheme of building a motor the price difference between the two cranks is negligable.
Do it once, do it right. Strongly urge going forged
I have run a scat cast crank at a hp level of 425 at the rear wheel for over 700 passes and 55,000 hard street miles before pulling it apart to change pistons. Car weighed 3600 lbs, No slicks or t brake. Was checked for straightness and was spot on. Eagle cast cranks had issues. That being said $869 forged or $381 for cast tough call. I haven’t heard of a scat cast crank breaking. But going back and reading your intended use I would go forged.