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timing set correct runs bad.

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Old Jun 13, 2005 | 10:38 PM
  #1  
92rs85berlintta's Avatar
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From: check under the car
Car: White 25th Anniversary RS
Engine: lt1
Transmission: t56
Axle/Gears: 4:10
timing set correct runs bad.

Well when the timing is set correctly it pops on start up. when the timing is advanced off the timing tab it starts good but not when its hot. Does this mean its running lean? Its a 366 i might be swapping in a spare 92 bird but i want to test it out first. all stock with a edel carb.
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Old Jun 13, 2005 | 10:40 PM
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Apeiron's Avatar
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
How sure are you that your timing marks are correct?
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Old Jun 14, 2005 | 04:24 PM
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92rs85berlintta's Avatar
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From: check under the car
Car: White 25th Anniversary RS
Engine: lt1
Transmission: t56
Axle/Gears: 4:10
100% they are original marks.
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Old Jun 14, 2005 | 06:18 PM
  #4  
Apeiron's Avatar
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Not original, correct. Over time the outer balancer ring can slip.
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Old Jun 14, 2005 | 08:55 PM
  #5  
firebird45331's Avatar
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Joined: May 2005
Posts: 500
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From: greenville, OH
Car: 86 Firebird, 2002 Monte Carlo, 91 v
Engine: 350
Transmission: 700R4
mine's doing something similar, I'm thinking it maybe vapor lock, I'm going to work on my exhaust and fuel lines, I'll let you know
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