With a POD starting from January 1, 1960, your challenge is to make supersonic travel (SST) as the most popular way of air travel, even as the oil crises of 1973-74 and 1979-82 happen as scheduled.
Note: please cite your sources. Thank you! :)
The secular opposition was actually in control of Iran's revolution before Khomeini stepped in. Butterflies resulting would be no Iranian Hostage Crisis, obviously, as the Iranians wouldn't be so fanatical.
However, I saw that the oil crisis was caused by the protests that started even before...