1990 350 TBI - Fitech Swap

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Joined
Nov 30, 2016
Messages
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Location
Sweden
Hi,

I recently built a 350 vortec with fitech injection and HEI ignition for my 1990 k1500. The motor runs fine and everything works good, except one small issue.
When i turn on my headlights, the ignition comes on. I think there might be a ground wire from the old TBI computer that's missing, could it be something else? The distributor is wired to the original wire that runs to the stock coil.

Thanks,
 
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