1996 GMC Jimmy SLT 4×4

cyphercrash

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This jimmy seems to have either the 1995 motor in it or just the heads from the 95. (As is evidenced by the spark plug being the 95 and not the 96) the gap on the plug for the 95 is .45 while the gap on the 96 is .60 or .65 (memory fail) obviously this is going to effect the way the engine runs. So, should I be gapping for what the computer in the vehicle is expecting or the gap for the engine/head specs (or somewhere in between for stability?
 

Jason6937

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I have a 2000 Jimmy, I don't even gap my plugs I just throw them in as they are and it runs great
 
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