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Spark Plug Question

nosaj2k

Full Member
Joined
Dec 19, 2008
Messages
226
Loc.
Green River, WY
I am getting ready to install new spark plugs in my 1970 Bronco. Aside from possibly a mild cam & a Pertronix distributor + coil, the 302 engine is basically stock. Should I purchase spark plugs that would normally be compatible with a stock 302 of that vintage with a points type distributor, or should I purchase a plug used on a later Duraspark equipped Ford engine (electronic ignition)? I guess to sum up my question, should I select the plug based on the engine block/head, or should I consider the ignition system instead? What about spark plug gap? Should I gap it at 0.030 for a 1970 points type ignition or 0.044 for a later duraspark?

THANKS!! ;D ;D

Jason
 
Last edited:

broncnaz

Bronco Guru
Joined
May 22, 2003
Messages
24,341
X2 get your standard spark plugs for the 1970 engine and just open the plug gap tp about .042-.044
 
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