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

1985 ISUZU TRUCK
120,700 MILES
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ISUZU8595
  • MEMBER
  • 114 POSTS
need more power
Jan 22, 2012 at 11:26 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Check engine compression if its within specs if not its useless to give it a tune-up
Jan 22, 2012 at 11:34 AM
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