4.6 2V Modular Spark plug list
MOTORCRAFT PART# / HEAT RANGE AWSF-32C / stock heat range - copper plug AWSF-22C / 1 Heat range colder - copper plug AWSFA-12C / 2 Heat ranges cooler - copper plug AGSF-32C/ Recommended for FRPP heads(not sure on heat range) NGK PART# / HEAT RANGE TR-55/ 3951/ Stock Heat Range TR-6/ 4177/ 1 Step Colder BP7EFS (PN - 3526) BR7EF (PN - 3346) two steps R5724-8 (PN - 7317) two and a half steps R5724-9 (PN - 7891) three steps R5724-10 (PN - 7993) four steps AUTOLITE PART# / HEAT RANGE 764s / Stock 103s / 1 heat range cooler AR94 / 2 heat ranges cooler AR93 / 3 heat ranges cooler AR92 / 4 heat ranges cooler CHAMPION PART# / HEAT RANGE YS-59C / -3 or -4 below stock heat range DENSO IRIDIUM PART# / HEAT RANGE IT16 / stock heat IT20 / -1 heat range IT22 / -2 heat ranges IT24 / -3 heat ranges |
I am currently at 14 psi. which sparkplug would you reccomend. I only have 9,000 miles but every little bit of upgrades helps.
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smaller gap and run methanol injection
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