Is there anything like a preformance Gap for the spark plugs or like preformance mixture screw adjustment?

Tiny
ISUZU8595
  • MEMBER
  • 1985 ISUZU TRUCK
  • 120,700 MILES
Need more power
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Sunday, January 22nd, 2012 AT 7:26 PM

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Tiny
RASMATAZ
  • MEMBER
Check engine compression if its within specs if not its useless to give it a tune-up
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Sunday, January 22nd, 2012 AT 7:34 PM

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