Need to make a decision fast 5.7/6.1/340

The 340 is over priced. Easier to build another la motor for it because you have all the accessories already.

The Hemi is cool too. You have to add up what the fuel system will cost to do the right way and the computer stuff.

In my opinion if you aren't going to use the efi the. Just go la motor.

I would also do what I had to and go with an od trans. Either an a500 or one that requires more cutting. Without od I don't see the Hemi getting all that much more mpg.