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The biggest concern here is the alternator/voltage regulator design. The 68 is external while the 78 has it built into the alternator. There are websites that explain how to do this. The only other real issue is the coil. The HEI needs more voltage than the small wire running to the external type coil of a 68.

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โˆ™ 2009-11-20 19:45:19
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Q: How do you wire a 68 firebird to a motor from a 78 firebird?
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