C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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Best FI option for small block

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Old May 21, 2023 | 09:20 AM
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zwede
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Originally Posted by Luke0312
I'm currently having an issue with the car dying after about 30 minutes of drive time, but I don't think it's related to the EFI, though I don't know what is causing it. You'll be driving and it's just like you turned off all of a sudden. New ignition switch didn't help, coil checked good (both cold and hot), but I'm putting another in anyway to be sure. If they doesn't fix it, I'll swap the distributor again.
I had that problem on my '71 when I ran a HEI. I had the electric fans set to stay off until coolant got to 210F. The stagnant air in the engine compartment made the ignition module overheat.

I now have the fans running at half speed whenever the engine is on and go full speed at 210F so that there's always air moving. That fixed it with the HEI. Since then I also switched to a Holley dual sync distributor and it has also worked fine.
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