Vvt lock or not

RSM said
Just want to make sure, will the P5160074 fit the 2012 truck engines? I'm new to the Hemi and have a truck with the donor 5.7 and after reading everything it sounds like I need the springs and the 392 cam. It's going into a 71 Demon. I'm starting to collect parts...and they aren't cheap. Also, what is MDS? It sounds like the truck engines with an automatic transmission will have it. Can it be deleted and use a non MDS cam? I'm only using the long block out of the truck. I will be going with a carb style intake and a 4bbl Sniper.

I know it will cost more money to do but you should consider a Multi port injection. I feel like the fuel distribution is gonna be terrible with heads that were designed for a dry intake. The short tight turns can't be good to keep fuel mixed. Unless the manifold is tall tunnel ram type with straight shots into the heads.