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Discussion Starter · #1 · (Edited)
I drove about 100 miles in 95 degree weather last week and the next morning I happened to look at the sight glasses in my Holley. The tops of the floats were about 1/2" below the sight glasses which means the gasoline levels were about 1/2" below the tops of the floats or about 1-1/4" below the center of the sight glasses.

This is why my engine would COLD start then immediately die. The accelerator pump pumped enough gasoline to start it but the super low float bowl level caused it to die. That's why I installed a push button fuel bowl priming switch a couple of months ago and since then it has done a great job on COLD starts after a HOT shut down.

I have also noticed it takes a full 5 seconds to re-fill the fuel bowls the next morning which indicates they were really low. When I push the button I hear the fuel pump running and then I can detect a tiny change when they get full.
 
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