long cranking times after sitting 2 weeks or more

Ele115

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Apr 24, 2019
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Tampa FL
I have a Walbro GSL395 and a bypass regulator. Modern fuel is garbage at low pressure and prone to vapor lock
This is at the root of it. The fuel now is not formulated for a system that is low pressure and vented to the atmosphere. The ethanol free stuff is a lot better, but still not nearly as reliable as the fuel available when these cars were new. This fuel is just fine with EFI. A vapor separator at the very least.
 
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