Within the next 4 months I will be starting to buy my parts to put a 671 on my 5.7 challenger. I'm starting at the manifold and building up. Would like input from more experienced like minded people. This is my parts list so far. Indy ModMan Intake Manifold, Dyers 6-71& custom Drive Kit with ATI to Blower adapter, ATI Balancer/Serpentine Pulley, LJvRE.