Suburban 3/4 Ton 4WD V8-305 5.0L (1986)
NOTE: If reading is too high, turn mixture needles clockwise. If reading is too low, turn mixture needles counterclockwise. Allow time for dwell
reading to stabilize after each adjustment.
9. After adjustments are complete, seal the idle mixture needle opening in the throttle body, using silicone sealant or equivalent.
10. Check and adjust idle speed.
