Falling Flat
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Heel & Toe
Joined: May 2008
Posts: 21
Likes: 0
From: Barnhart MO
Falling Flat
My 77 Vette falls flat on its face when I punch it hard. Had the Quadrajet carb rebuilt and timing checked. This happens when engine is cold or hot. It acts like it is starving for fuel.
Race Director
Joined: May 2006
Posts: 18,662
Likes: 2,563
Fuel pressure test
Race Director
Joined: May 2006
Posts: 18,662
Likes: 2,563
Bog
In addition to the primary accelerator pump it could be a low float level or the secondary air valve is not correctly adjusted.
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Pro
Joined: Nov 2008
Posts: 542
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From: Bloomfield Hills MI
I would define 'flat on it's face'. If you punch it and it coughs before it builds speed = accelerator pump is weak or not working. If it simply does not have the 'go' it should and appears to starve, then that suggests fuel flow issues or secondaries as pointed out.