Contact Jaycar and they might be able to send you a copy of the programming instructions.
From the images they supply it looks like there is now an on board port for PC based programming: -
I built one of the first generation of these years ago, it used a numeric keypad to input the values.
The current generation is quite different, I'm sure it will intercept the existing wiring OK and do the required retard on boost.
I also have a Deltamax Digital Ignition Controller which is a very smart device with dual map capability for say LPG and Gasoline.
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I was going to use it on one of my conversions but now I think I'll use the Haltech E6X [shared with another vehicle
].
Unfortunately, it appears that they are no longer in business: -
http://www.delta-digital.com.au
You might consider picking up a used Haltech IG4 or IG5 Ignition only ECU.
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http://www.haltech.com/index.php/downlo ... s-products
They turn up on ebay now and then.
As a matter of fact, any used programmable ECU should be good for you since unless it is
very old, it should do both fuel and ignition.