Quote:
Originally Posted by emcon5
The early CIS system should run the later engine just fine, and will be a lot simpler.
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If he swapped over the whole early CIS system to the '80 long block, it would run. It wouldn't run as well as the stock '80 engine installed correctly. The point is he's swapping a complete engine, not just a long block and he needs the control unit for the newer engine to run correctly. A '78/'79 CIS system is very different from an '80.
JR