Autolite Spark Plug For AFR Heads - Cold Heat Range

CJ's Part Number: SP3922
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1469232000 31045
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Autolite Spark Plug For AFR Heads - Cold Heat Range
Autolite Spark Plug For AFR Heads - Cold Heat Range Autolite Spark Plug For AFR Heads - Cold Heat Range

Product Description

Autolite Spark Plug for AFR race cylinder heads.

For colder/low heat range. Use with nitrous, blower or 11:1 and higher compression ratio engines. Also works with Edelbrock aluminum heads.

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Installation Instructions

Mustang Installation

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Product Questions

what is the correct heat range for a 1973 351 Cleveland

Asked by: 285 engines

What is correct heat rang or number for 289 ford hypo engine (sparkplug) 

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