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Discussion Starter #1
I have a carbureted 460, and I’m trying to pin point an issue. The engine is randomly dropping rpm while driving and then reving back up. What could cause the engine to do be doing that?
 

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Does a miss or roughness accompany this drop?
Drop on tach?
Drop in cruising speed?


SJ
used 2b RHP


.
 

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Registered
Joined
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6 Posts
Discussion Starter #3
I have a carbureted 460, and I’m trying to pin point an issue. The engine is randomly dropping rpm while driving and then reving back up. What could cause the engine to do be doing that?
Does a miss or roughness accompany this drop?
Drop on tach?
Drop in cruising speed?


SJ
used 2b RHP


.
It has a drop in speed and drop on tach, but it is not missing
 

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Premium Member
Joined
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8,964 Posts
If the throttle feels mushy it is likely running lean.

Fuel filter
Fuel pump
Vapor lock or fuel flow reduction due to heat.

Carburetor issues.


SJ
used 2b RHP
 
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