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400 Spark Plugs?

Started by bordin34, November 18, 2007, 03:44:09 PM

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bordin34

November 18, 2007, 03:44:09 PM
What spark plugs should I use for my 1973 400 with a mild cam. The car has the stock ignition system with a Blaster coil.

1973 SE Brougham Black 4̶0̶0̶  440 Auto.
1967 Coronet Black 440 Auto
1974 SE Brougham Blue 318 Auto- Sold to a guy in Croatia
1974 Valiant Green 318 Auto - Sold to a guy in Louisiana
Mahwah,NJ

firefighter3931

#1
November 18, 2007, 05:30:21 PM
NGK XR-5's work great with Iron headed pump gas motors.  :2thumbs:


Ron
68 Charger R/T "Black Pig" Street/Strip bruiser, 70 Charger R/T 440-6bbl Cruiser. Firecore ignition  authorized dealer ; contact me with your needs
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