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backfiring thru carb...

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Old Jan 9, 2008 | 08:28 AM
  #1  
82Five-O's Avatar
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From: Fort Worth, TX
Car: 82 Sport coupe
Engine: 355 semi roller
Transmission: TH-350 B&M ratchet shifter
Axle/Gears: 3.73 Eaton Posi
backfiring thru carb...

I think my valves are lashed too tight. Will that cause backfire thru the carb?
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Old Jan 9, 2008 | 08:34 AM
  #2  
sofakingdom's Avatar
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Re: backfiring thru carb...

Yes

If an intake valve is hung open when a cyl fires, it will light off the entire A/F charge inside the intake manifold.
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Old Jan 9, 2008 | 08:37 AM
  #3  
jtrescot's Avatar
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From: upstate NY
Car: 88 GTA
Engine: 355
Transmission: TH350
Axle/Gears: 3.42 Auburn Pro
Re: backfiring thru carb...

Also ignition timing.
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Old Jan 9, 2008 | 08:42 AM
  #4  
82Five-O's Avatar
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Joined: Nov 2007
Posts: 291
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From: Fort Worth, TX
Car: 82 Sport coupe
Engine: 355 semi roller
Transmission: TH-350 B&M ratchet shifter
Axle/Gears: 3.73 Eaton Posi
Re: backfiring thru carb...

Sofa nailed it. It shoots like a 2 foot flame out the carb lol. I'll adjust 'em.
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