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Spark plug gapping on new engine

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Old Sep 12, 2005 | 01:15 PM
  #1  
1985WS6transam's Avatar
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From: Long Island, New York
Car: 1988 Firebird Formula
Engine: 388 Carb
Transmission: 700R4
Axle/Gears: 4.10
Spark plug gapping on new engine

I just recently got a car that a 350 was put in it. It has less then 10,000 miles on the 350, I would like to do a tune up just to be safe but I am not sure what the gapping should be. I am also not sure what the engine was from, the person I got it from said that it was a 350 rebuilt bored .30 over. Any suggestions would be greatly appriciated.
TIA
Dennis
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Old Sep 12, 2005 | 03:00 PM
  #2  
Tremo's Avatar
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From: San Jose, CA, USA
Car: 88 IROC-Z - original owner!
Engine: LB9 with K&Ns, MSD, Foil, Taylor
Transmission: WC T-5
Axle/Gears: BW 9-bolt, 3.45 posi
Plugs on the SBC were usually gapped at .035.
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Old Sep 12, 2005 | 03:07 PM
  #3  
1985WS6transam's Avatar
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Posts: 1,048
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From: Long Island, New York
Car: 1988 Firebird Formula
Engine: 388 Carb
Transmission: 700R4
Axle/Gears: 4.10
Yea, thats what I was thinking but I wasnt sure if the boring out .30 would have changed it, Thanks
Dennis
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