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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

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Old 04-01-2005, 08:49 PM
Pwrstrkn Pwrstrkn is offline
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Question what is the Distributor/timing specs for a 460

I have a 94 Ford F350 with a 460 that I need to retard the distributor/timing. Does anyone know the specs?

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Old 04-06-2005, 07:50 PM
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I have a 88 with a 460. I am between 10 and 14deg BTDC at 750rpm idle. Since this is all comp/vacum controlled I can't narrow it down any more than that. Hope this helps, Karl...
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Old 04-06-2005, 08:54 PM
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10° BTDC with spout removed. You cannot take and accurate reading with the spout connected.
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Old 04-13-2005, 12:38 AM
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I've got a 90 with a 460 that knocks if I don't use 93 Octane. Can I retard the timing to 8 degrees and use regular 87 octane? I use it to tow my boat. I'm pulling about 10,000 lbs.
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Old 04-13-2005, 06:08 AM
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Retarding the timing might help. I'd try running a can of Seafoam through the fuel tank and another through the vacuum booster line to help remove some of the carbon build-up in the cylinders/intake system. Most pre-ignition in older vehicles is due to residual heat in carbon deposits in the combustion chamber. At about $5.00 a can, it's well worth a try before going with the timing adjustment.
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Old 02-10-2013, 09:49 PM
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I have 1986 f250 with 460,the last yr for carbs. they came with 2 air pumps n air injected in the exhaust,ran like ****,high idle n no power,had all kinds of vacumn leaks.In-laws bought it new.removed vacumn pumps2 n replaced exhaust with earlier manifolds.Replaced the timing chain with 1970 chain,they are not retarded 6degrees from the factory.replaced intake with one without ERR plate. I run 10degree timing n 87 octane.also the dist.has way to much vacumn,thats why she rattles under load. dont know about F.I. models
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Old 02-11-2013, 01:07 AM
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Disconnect the spout, check the initial timing with a light, should be 8* BTDC stock, if you're good there then suspect other problems. If it is advanced more than 8* someone may have messed with it before, these engines like 12* BTDC so I would think another problem is causing your preignition. Good luck!
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Old 02-11-2013, 05:46 AM
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First off;
This is an eight year old thread...


1987 was the last year for Carb's.
There is no spout with a carb and DSII system.
10 degrees is stock, I'm at 12 with no problems.
If you have an issue with knock, point the finger at yourself for removing the EGR spacer.
As for advance, just get yourself a Crane Cams adjustable advance unit and follow the instructions.
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Old 02-11-2013, 05:46 AM
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