# 1975 Chevy Nova

**URL:** <https://community.cartalk.com/t/1975-chevy-nova/25986>\
**Category:** Maintenance/Repairs\
**Created:** [February 3, 2009, 9:57pm UTC](https://community.cartalk.com/t/1975-chevy-nova/25986 "2009-02-03T21:57:45Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Skeetyboo](https://avatars.discourse-cdn.com/v4/letter/s/b2d939/32.png) [@Skeetyboo](https://community.cartalk.com/u/Skeetyboo)\
**Post date:** [February 3, 2009, 9:57pm UTC](https://community.cartalk.com/t/1975-chevy-nova/25986/1 "2009-02-03T21:57:45Z")

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Why does the spark plugs foul out every couple of months?

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**Author:** ![texases](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/texases/32/862_2.png) [@texases](https://community.cartalk.com/u/texases)\
**Post date:** [February 3, 2009, 9:58pm UTC](https://community.cartalk.com/t/1975-chevy-nova/25986/2 "2009-02-03T21:58:39Z")

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Engine? Miles? How many plugs foul?

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**Author:** ![GreasyJack](https://avatars.discourse-cdn.com/v4/letter/g/df705f/32.png) [@GreasyJack](https://community.cartalk.com/u/GreasyJack)\
**Post date:** [February 3, 2009, 11:07pm UTC](https://community.cartalk.com/t/1975-chevy-nova/25986/3 "2009-02-03T23:07:41Z")

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What do they foul with? Black stuff? White stuff? Grey stuff?

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**Author:** ![edb1961](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/edb1961/32/122_2.png) [@edb1961](https://community.cartalk.com/u/edb1961)\
**Post date:** [February 4, 2009, 1:37am UTC](https://community.cartalk.com/t/1975-chevy-nova/25986/4 "2009-02-04T01:37:52Z")

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This may help.

[http://www.aa1car.com/library/sprkplg2.htm](http://www.aa1car.com/library/sprkplg2.htm)

Click on the “Reading Spark Plugs” picture.

Ed B.

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**Author:** ![MikeInNH](https://avatars.discourse-cdn.com/v4/letter/m/a587f6/32.png) [@MikeInNH](https://community.cartalk.com/u/MikeInNH)\
**Post date:** [February 4, 2009, 3:27pm UTC](https://community.cartalk.com/t/1975-chevy-nova/25986/5 "2009-02-04T15:27:36Z")

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Still have the points and condenser???

If you do it might be worth upgrading to a electronic ignition setup.

There are many reasons for fouling plugs…Look at the chart in the link provided. It’ll help.