Why would the spark plugs on a 350 Chevy engine be glowing every time cylinder fires when is running and how can problem fixed?

There are a few reasons why the spark plugs on a 350 Chevy engine might be glowing every time the cylinder fires when it is running. One possibility is that the spark plugs are too hot for the engine. This can be caused by a number of factors, including:

Incorrect spark plug gap

Lean fuel mixture

Retarded timing

Excessive carbon buildup on the spark plugs

If the spark plugs are too hot, they can glow and cause pre-ignition, which can damage the engine. To fix this problem, you can try replacing the spark plugs with cooler ones, adjusting the fuel mixture, or retarding the timing. You can also try cleaning the carbon buildup off of the spark plugs.

Another possibility is that the spark plugs are not getting a good ground. This can be caused by a number of factors, including:

Loose or damaged spark plug wires

Bad spark plug connectors

Faulty distributor cap or rotor

If the spark plugs are not getting a good ground, they can glow and cause misfires. To fix this problem, you can try tightening the spark plug wires, replacing the spark plug connectors, or replacing the distributor cap or rotor.

If you are not sure what is causing the spark plugs to glow, you should take your car to a mechanic for diagnosis.