how do i make efi work on my 318?

To put this in perspective, the factory TBI is a glorified version of "whut I had" to play with for one summer........Holley "Pro-Jection" 2D. There are several versions of this. The point is "these don't work" very darn well, but they are simple

http://www.forabodiesonly.com/mopar/showthread.php?t=205959&highlight=holley,



These consist of

The throttle body and adapter to mount on a 4bbl manifold

The controller which has "pots" to adjust idle, cruise, accel, etc

A temp sensor

An optional (narrow) O2 sensor

fuel pump and you need a return line.

Regulator is in the TB unit.

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This was fun to play with and it did run and drive. In fair weather it was "OK." You really need a wideband O2 to tune it

The differences between the factory stuff you are contemplating and this is.......a few more sensors, and you cannot make any adjustments. Parts will be hard to find (for either system) if you need them.