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Group: Forum Members
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I changed spark plugs last week. After 150 miles I checked them, they we totally white. I increased my main jets from 50 to 53. This is what they looked like after 200 miles with the 53 jets. I increased the jets to 55. How long should I wait to see if they are still white, or hopefully tan? The car is running really well, except for hot water temps when the AC is on and I'm doing 75/80 MPH for 15 minutes 
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Group: Forum Members
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I was going to buy Autolite plugs from Walmart, but they raised the price. I ended up buying NGK plugs from RockAuto (best price at the time). My NGK plugs are V-Power Resistor Type plugs, WR5 2438.
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Group: Forum Members
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Just installed a set of NGK WR5's in my 312 and so far very satisfied. Resistance reading 10% within 5000 ohms - that's very good.
64F100 57FAIRLANE500
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Group: Forum Members
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 Maybe this will help.
64F100 57FAIRLANE500
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