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11-02-2004, 03:43 PM
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#1 |
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Registered User
Join Date: Dec 2003
Location: CT
Posts: 454
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Spark plug gap with TBI distributors
Can someone tell me what spark plug gap I should be using for a TBI setup off of an '87 350...
Are the TBI distributors HEI? I swapped this TBI onto my 85 305 and obvioisly replaced the carbureted HEI distributor which used a gap of 0.045. It never occurred to me (until now) that I should change the gap! I think a non HEI gap is around .035??? What would 0.010 do for plug spark?? thanks.
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1985 GMC Sierra 1500, 1/2 ton, 2WD, LWB, TBI 305 5 speed, 3.42 rear 2007 GMC Sierra 1500, xtended cab, 4X4, flexfuel 5.3L 1999 BMW 528i |
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11-02-2004, 03:47 PM
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#2 |
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Registered User
Join Date: Apr 2003
Location: Central florida
Posts: 3,223
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my 95 tbi im running a .035 and it seems fine all the times ive gapped them that size
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11-02-2004, 04:48 PM
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#3 |
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Registered User
Join Date: Oct 2004
Location: Sacramento
Posts: 42
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The proper gap determines the duration and how hot the spark is. If the engine requires a .060 gap you need to to gap them that way reguardless of the distributor.
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