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| Mechanical and Engine Tuning and Mods Found a way to add horsepower by tuning a few parts? Have some questions about Tuning your own engine? Well post them here and learn from other members. |
This is a discussion on 390 has miss at all throttle speeds within the Mechanical and Engine Tuning and Mods forums, part of the Tech Forums category; Have newly rebuilt 390 with 2000 miles on it. Has new plugs, wires, points, condenser, vacuum advance. Timing, dwell, points, ...
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12-30-2014, 08:42 AM
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390 has miss at all throttle speeds
Have newly rebuilt 390 with 2000 miles on it. Has new plugs, wires, points, condenser, vacuum advance. Timing, dwell, points, and plugs are all within spec. Cap and rotor appear to be in excellent condition. Checked running motor at night .... no fireworks.
Engine has a miss at idle and throughout throttle range. It has poor acceleration. Any thoughts on to proceed or troubleshoot? Thanks, John 
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12-30-2014, 11:26 AM
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Can you bring motor back to rebuilder? That could be various things. Is dizzy put in correct not 180 degrees out? I would advance timing and see how it reacts. wires on in correct locations? Vacuum leak?
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