my 408 stroker

Very nice build and cam selection!

The 850 cfm carburetor would defiantly help that engine out with that cam.

This may be a dumb question but I am on the fence about going with a forged rotating assembly or cast. What is a safe hp for cast vs forged? I am shooting for around 500 N/A and I have the budget to go forged but I don’t want to spend the money if it can be better spent in another way.

Not a dumb question at all. The cast steel (vs stock cast iron) will handle that just fine. I haven't used a Scat 4340 crank for this combo yet, but I bet it wouldn't need to have Mallory installed to balance like the cast crank did, even with the light bobweight this one had. So the added cost of the 4340 with less balance work may end up similar to the cast crank with having to add Mallory.