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Old 12-18-2002, 06:41 PM   #1
85Silverado
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Ignition Timing

I think my timing is off or my advance isn't working...went taking off she's very sluggish and if i give to much gas she bogs but once i pick up a little more speed she's good. Any ideas? Thanks
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'78 C20 Scottsdale
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My trucks are "Car-Guy safe".......which pretty much means death trap in the hands of a normal civilian.
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Old 12-20-2002, 10:12 PM   #2
86SILVERADO
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Hello 85silverado, just had the same problem with my 86. It turned out to be the EGR valve. Also check all vacuum hoses for leaks. I know there are alot of 'em.
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Old 12-21-2002, 10:43 AM   #3
79BIG10
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I would check your timing and see if your advance is working using Swervin's article http://www.73-87.com/garage/101s.htm Also check for vacuum leaks like 86 Silv. mentioned.
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Old 12-21-2002, 06:16 PM   #4
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I went looking around in the engine bay and you were right...the vacuum line from the egr valve to the carb was laying on the manifold...i plugged it back into the egr valve and sluggishness is all gone now..hehe....it seems like a really loose fit tho...so i'm gonna replace it asap
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Paul D.

'78 C20 Scottsdale
350ci
3 speed with granny gear
14 bolt rearend


My trucks are "Car-Guy safe".......which pretty much means death trap in the hands of a normal civilian.
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Old 12-21-2002, 06:32 PM   #5
86SILVERADO
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Thumbs up

Glad you figured it out bro. I am putting a 350 in mine over the holidays and will be replacing all 3 miles of vacuum hose.
Happy Christmas,

Norris
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Old 12-21-2002, 06:36 PM   #6
85Silverado
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what engine are you taking out? Merry Christmas to you too. Thanks again
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Paul D.

'78 C20 Scottsdale
350ci
3 speed with granny gear
14 bolt rearend


My trucks are "Car-Guy safe".......which pretty much means death trap in the hands of a normal civilian.
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Old 12-21-2002, 09:13 PM   #7
86SILVERADO
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I'm pulling the 305. It just doesn't cut it for hauling around my 18' trailer and JD 855.
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86 Silverado C10 back to 305 power!

67 C30 Dually Dump, with 350 transplant, Rockhauler

05 Duramax 3500

"If at first you don't succeed, try a bigger hammer"

Member of the 1-Ton club!
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Old 12-22-2002, 11:40 AM   #8
85Silverado
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Ah...wish i was closer...i'd take the 305 off your hands if you were just gonna junk it..hehe
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Paul D.

'78 C20 Scottsdale
350ci
3 speed with granny gear
14 bolt rearend


My trucks are "Car-Guy safe".......which pretty much means death trap in the hands of a normal civilian.
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