5.7 Hemi injected or carbed or 383 carbed?

There are two problems with the Edelrock dual quad 5.7L Hemi intake manifold.

First, the dual quad manifold is only compatible with the 2003-2008 5.7L heads, it will not match to either the 2009 and later heads or the 6.1L heads. I'm pretty sure that you could port match them to the 6.1L heads and the 2009 and later 5.7 Heads, but this is additional work that shouldn't have to be done.

Second, the dual quad manifold doesn't have bosses pre-cast into the manifold for port injection. Certainly someone could weld bosses onto the manifold to accept injectors, but again this added expense should be unnecessary.

I really like the look of the dual quad setup and sent Edelbrock an email suggesting that they make one for the 6.1L Hemi and include bosses for EFI, I received a canned response. :(

Like a lot of people, I am not a particular fan of the Mod-Man manifold. The runner length is simply too short to produce the torque these motors are capable of, that being said if you wish to use an old-school air cleaner, or you don't like the looks of the truck manifold it is about the best option.

Finally, you are quite correct. Megasquirt is a viable and inexpensive option. I am using MS3 in my build. As far as price goes, depending upon whether you build-it-yourself or buy a pre built unit the total cost of MS is comparable to the Hot-Wire Auto setup, but the learning curve is obviously steeper. You can save quite a bit if you choose to build your own.

Diyautotune.com has a new MS3 setup called MS3 Pro, basically it is a pre-built MS3 but has the benefit of being in a sealed case with AMP style connectors. Thus you can now mount it under the hood, rather than inside the car.

You can read about it here:

http://www.diyautotune.com/catalog/ms3pro-standalone-ecu-with-839-wiring-harness-p-538.html

Regards,

Joe Dokes