Let's look at what the carb is.
Its a 1978 q jet. It HAS APT, which IS Adjustable.
adjust carb till it runs great and leave it.
Can't expect to get so called " ideal" AFR with alcohol fuel and carb/ manifold set up vs fuel injection.
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"The Future Belongs to those who are STILL Willing to get their Hands Dirty" .. my Grandfather
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