392 Cranks and Rods - Blown Motor

[Bored&Stroked]

1) Application: Street blown 392 - max boost 8 - 10 lbs.

a) Crank: How strong is a stock 392 crank? Mine is STD/STD. I'm planning on putting 4-bolt mains on the center 3 and running different rods. Will the stock forging take much abuse, or must I bite the bullet and go to a billet crank? I don't want to grenade a good engine and ruin the block in the process.

b) Rods: How about running 426 rods 6.86 length versus STD length H-Beams? Anything better for the street?

Any help is much appreciated!