I know its been beat to death, but I can't find a simple straight answer... I have a 71 Cuda, and a 6.4 Hemi crate engine, engine is a 2011 Challenger engine with the plastic intake, what do I need to change at minimum cost to run this? I have a small block 833 trans Ill be running... Not opposed to swapping to a carburetor if it saves me money.

There is a Fast N Loud episode on Monday installing one in a 71 Challenger.

you would need a controller. , 6.1 intake and have it CNC to fit 6.4, fuel rails for 6.1, ATI Super Damper is recommended, and Ported 87mm throttle body.

Why a 6.1 intake?

6.4 intake has a computer controlled runner that no one has a controller for.

There's been a lot of 6.4's installed in the older cars

Pretty sure you could use the 6.4 intake. The biggest thing will be finding a controller to deal with the VVT. You could lock out the cam and use almost any controller, but the VVT is worth power. Also it has a variable runner intake, but it just needs a 12V source hooked to an RPM switch to activate it when you want. The guys on the LXForums seem to set it at 4400ish RPM when they do the swap onto a 5.7.
I think MS3 is able to control the VVT now. HotWire also sells swap kits for the electronic side using factory parts

I know it kinda defeats the purpose, but can the 6.4 be carbureted?

I'm sure it could but then you'd have to do ignition still. A dragpack intake is a good intake

Ignition was my concern... The Msd box only shows for a 5.7

Holley now makes a full wiring harness and computer for swapping anything from a 5.7 to a 6.4 fairly "easy".

http://www.hotrod.com/features/1501-hemi-engine-swaps-made-simple-with-new-holley-efi-harness/

Ryan

Do not fall into the "this is an easy swap" mentality. There are so many computer issues depending on which engine, trans, instruments, etc you can easily end up spending many times more than you planned. I HIGHLY suggest you talk to Dave at Modern Muscle at the very least. He does this every day across many combinations of platforms. It will NOT be cheap no matter what you think. The least expensive way is to get the info up front and proceed accordingly.
Sure, there is a lot of info about how to make it all fit...that is the EASY part!
Been there and done all of that and that is where I am coming from. The computer issue is huge on these swaps particularly when you don't have it figured out up front. Progress is being made daily on making these swaps easier.

Thats why I keep thinking a carburetor may be the way to go... I have a 6 speed auto for it too, but already decided to stick with my 4 speed... Does anyone know if there is a ignition controller to run a carb on this thing???

Anyone?

What about using the factory computer(s) to control it? I would think that would be an easier place to start, plus cheaper when you buy a whole wrecked car. Does someone have access to the programming to remove programming you don't need (like cats, etc)?