Spark plug gap??
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Joined: Jul 2003
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From: San Diego, CA(best weather in the world)
Spark plug gap??
here's the url M1lion one of the administrators here posted from the manual. Looks like .035 is right. 
http://mil1ion.clubfte.com/67-72EngineTune-upSpecs.html
http://mil1ion.clubfte.com/67-72EngineTune-upSpecs.html
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Joined: Jul 2003
Posts: 163
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From: San Diego, CA(best weather in the world)
Spark plug gap??
that's including an econoline. they hold true for all 390 truck motors.
Dennis
Dennis
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Joined: Jul 2003
Posts: 163
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From: San Diego, CA(best weather in the world)
Spark plug gap??
np, I think you'll find this site is a great resource. It sure has helped me alot in working on my truck. Anything I can do to give back to this forum.
Dennis
Anything I can do to give back to this forum.Dennis
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Joined: Mar 2003
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From: nevada
Spark plug gap??
I installed a hotter ignition system and a Pertronix kit on my 390. Plug gap is at .045 and no probs. Just had smog test and passed so well, I went home and had a beer to celebrate. (New rebuild).
Senior User
Joined: Jul 2003
Posts: 163
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From: San Diego, CA(best weather in the world)
Spark plug gap??
Running a larger gap will give you a hotter spark, right? Probably didn't hurt when you passed the sniffer. Does it make your engine run hotter?
I'll have a beer to help you celebrate.
Dennis
I'll have a beer to help you celebrate.
Dennis
Senior User
Joined: Jul 2003
Posts: 163
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From: San Diego, CA(best weather in the world)
Spark plug gap??
hehe, I feel sorry for them, though, my dad had to pass the sniffer when he lived in Reno, NV and it passed with flying colors. Little octane boster helps, BTW.
Dennis
Dennis
Last edited by mypa'struck; Sep 17, 2003 at 07:02 PM.
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From: nevada
Spark plug gap??
Here in Nv we have a yearly test, although the requirements for older trucks are quite lax. As long as they dont smoke and emit too much CO they will pass. When they give you the results, you can look at the numbers and see at what end of the limits your motor is running at. If you're in the buying mode, its worth the 20 bucks to see exactly what condition the motor is in. Numbers dont lie. (Very much)