Need help building 416 Stroker!

VERY lumpy with the short 3.31 340 stroke. Will be pretty tame with a 4" stroke. The 428 HP 340 was a blast. Guy at local cruise wanted it worse than I did. Bought it rite out of my car. Im now on my 3rd 340 in 5yrs. Bad habit of selling them and building another one. 11 spares, why not?