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1978 F350 with 460 Ignition Timing and Idle RPM

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Old 01-18-2008, 11:46 PM
malamute552000 malamute552000 is offline
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1978 F350 with 460 Ignition Timing and Idle RPM

I have a 1978 F350 Ranger XLT, 2WD, with a 460, and the 4 barrel holley carb. The emissions control label is long gone.

I'm trying to find the specs for Ignition Timing and Idle RPM. Web searches haven't turned up any useful information.

Do any of you have this info? Thanks in advance.
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Old 01-19-2008, 01:03 AM
Mil1ion Mil1ion is offline
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Welcome to the site

I can help you.

Your Calibration code for that engine is

8-97-R0

Go to this page and Scroll down to the 2nd last row of specs to find yours

http://www.clubfte.com/users/mil1ion...e-upSpecs.html


Bonus for you:

This page shows your emissions hose routing

http://i69.photobucket.com/albums/i7...97-R0nonac.jpg
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Old 01-19-2008, 11:32 AM
malamute552000 malamute552000 is offline
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Dennis,


Thanks for the info, that is a lifesaver. I should have put this in the earlier question, but do you know if the vacuum hose is to be removed from the distributor vacuum advance when setting the timing. Some info I did find implied that sometimes you remove it, and sometimes you don't.

Thanks again.

Dave
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Old 01-19-2008, 02:02 PM
Mil1ion Mil1ion is offline
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No, it is to remain hooked up and make sure the engine is at normal operating temp as well.
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Old 02-22-2008, 08:25 PM
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Sorry to bump this thread from the dead, but didnt want to start another one. Dennis, is that chart you referenced applicable to a 73 f250 w/ a 460 also? Somehow I ended up setting the timing at about 9-10 with the vacuum advance disconnected from the dist and plugged, and the truck has a terrible time starting up. Got the info from here (this site), but dont remember how long ago or from whom ( I have been on 2 cruises back to back and am getting ready for another one, and just havent been around much.)

Thanks,

jamie
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Old 02-22-2008, 08:32 PM
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Try retarding the timing back to 4* or so, see if that helps. Also, is your truck points or electronic ignition? I think the 460 that year was the first to get the electronic ignition.

If you copy the link Dennis posted, and remove the file name, that will show you the listing of all of the items he has uploaded. You might find what you need there, or at his FTE site http://mil1ion.clubfte.com/FordRelatedLinks.html
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Old 02-22-2008, 08:55 PM
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its got new points in it, no electronic ignition. so 4* would be ok and not tear anything up? I have to tow a trans am tomorrow with this truck.
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Old 02-22-2008, 09:14 PM
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I set it to 4* and it starts ok now, but I am worried I have neutered it as far as power is concerned. Is this valid?
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Old 02-22-2008, 10:58 PM
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Drive it and see. If you don't like it, keep bumping it up till you are happy with the power, and it starts easy. 4* is where some engines were supposed to be from the factory. The heavier duty, the lower the timing is it seems like.
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