I have a 1988 Wrangle YJ, 5-speed with 258 I6. Just rebuilt the engine and added a Holley 390 cfm with an Offenhauser manifold. Most of the pollution stuff was gone when I bought it. It runs great at highway speeds, but misses intermittently at idle. I did a Nutter bypass because I thought the computer was unable to regulate the timing at low rpms, but this doesn't seem to help. I would appreciate any suggestions or guidance.
Missing at idle / low rpm.
- Thread starter je30062
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