proper gap size
speeddevil
02-16-2007, 08:52 PM
What is the proper gap size for spark plugs for an 87 4.3L, i was told by pepboys 0.35. is this correct?
CD Smalley
02-16-2007, 09:46 PM
Should be on the emission sticker under hood. .035 sounds about right.
463
02-17-2007, 05:46 PM
.035 is the correct plug gap
speeddevil
02-20-2007, 09:27 PM
assured check under hood and indeed .35 is proper but for sum odd reason my car runs like crap when gapped at .35, car runs hella good when gapped at .45, is this bad?
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