408 crank?

In a 3300# car that works well, to go these numbers, you need about:
mid-high 12's -320-330
12.00 - 370-380
11.50 - 420-430
11.00 - 480-490
10.70 - 520-530

In a 3000# ride, even less

My little 425hp car used to tear up the big HP braggers cars. Mostly because the big hp cars didn't make what they thought and couldn't hook what they did have.

For the OP, forged crank is the way to go on that engine.