This Spring I had exactly the same symptoms. I checked everything three times
(carbs, dwell, timing, fuel filter, gas, etc, etc), which I am sure you have
also. Finally I purchased and installed a new dizzy cap, condenser, plug
wires and coil. It's running great now.
I inspected/tested everything I pulled out, and found nothing, But one of
those components is defective at higher RPMs under load.
Mr White - '60 1275 Bug w/ 5 speed
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