This is topic spark plug questions in forum Tech Talk at Northern California Ford Owners .
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Posted by fam_lace (Member # 8565) on
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if i bump up my 351w to 9.8.1 compression and add a msd box do i need to to change my plug gap if so what should it be and are the ford motorcraft plug ok to use i had autolite #24s before
Posted by 94 N.C.F. GT (Member # 3946) on
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Just stick with auto lites same gapping
Posted by fam_lace (Member # 8565) on
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.44 or .54
Posted by 93sspCOUPE (Member # 8418) on
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.50-.54 I'm not familiar with that plug but with msd boxes you want a non resistor plug
Posted by fam_lace (Member # 8565) on
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quote:
Originally posted by 93sspCOUPE:
.50-.54 I'm not familiar with that plug but with msd boxes you want a non resistor plug
what plug would that be
Posted by 94 N.C.F. GT (Member # 3946) on
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If your not running a SC or nitrous gap them at 54
Posted by 93sspCOUPE (Member # 8418) on
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I'm not sure go on there website and check if it's resistor or non if not there's a cross reference chart on there
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