Originally Posted by duxthe1

I'm going to have to play devil's advocate here. Having built and tuned a Megasquirt system, I would not even consider swapping OE electronics. They were designed and built for a certain engine to perform a certain way in a certain chassis. You're swapping the engine into a vintage chassis that was not designed and built to perform like the donor. As you are finding out the OE electronics are designed to interface across several systems, and include poorly executed "features" like the DBW.

Its my opinion that if you want to swap an engine into a vintage chassis, a stand alone system allows the opportunity to optimally tune the engine to the conditions it will be operating under. I'd assume that the desire to go OE is for a "plug and play" install. You'll likely find it not to be so, and after all the effort to make it work you'll be stuck with a collection of compromises. The stand alone may have a steeper learning curve but once you install it, learn it, and tune it, you wouldn't even consider an OE swap, either.