best machine shop/porter for 340 j heads

http://www.popularhotrodding.com/enginemasters/articles/mopar/0667em_mopar_318_engine/

CHECK THIS OUT? 318 WITH 415 HP WITH MOSTLY STOCK? LET ME KNOW WHAT YOU GUYS THINK ALSO I NEED A GOOD MACHINE SHOP IN NJ ANYONE KNOW OF ANY THANKS :coffee2: