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04-29-2017, 08:11 PM | #1 |
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Join Date: Sep 2008
Location: East St Paul,Manitoba Canada
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BBC spark plug help
We have a mid 70`s 454,290 casting heads,.600 lift solid cam,850 Holley HP, victor jr intake, 10-1 comp, bracket motor. Looking for some spark plug recommendations. Also has a crank trigger with a 7 al ignition. 7000 rpm limit with leaded race gas. Thanks for any input.
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05-01-2017, 11:12 AM | #2 |
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Location: Inver Grove Heights, MN
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Re: BBC spark plug help
When I ran iron heads, I always used NGK R5673. The -8 heat range is a good place to start.
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05-01-2017, 05:29 PM | #3 |
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Join Date: Sep 2008
Location: East St Paul,Manitoba Canada
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Re: BBC spark plug help
Thanks for the help. We will start there.
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05-01-2017, 06:18 PM | #4 |
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Location: Davidson, NC
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Re: BBC spark plug help
Autolite AR-133 or AR-134 the higher the number the hotter the plug.
Rich |
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