AHC: Reverse the sect demographics among Muslims

How do you make Shias 87-90% of the Muslim population, while Sunnis are 10-13%? Bonus points if you have traditional Sunni strongholds (Arabia, North Africa, Indonesia etc.) become Shia and traditional Shia strongholds (Iran, parts of Yemen and Iraq) be Sunni.
 
Reverse the historical events—have Shi’a Islam “win” across the Islamic world and then have a radical Sunni dynasty rule Greater Iran for a few centuries.
 

Teejay

Gone Fishin'
Maybe have the Fatimid dynasty convert the majority of Muslims in their territories to Ismailism and not collapse as it did in OTL. Before the Safavid dynasty made Twelver Shia Islam the official religion of Iran, a large percentage of Shia were Ismaili.
 
Have Ali elected as caliph in the first shura, through this "Shi'at Ali" wouldn't be remotely similar to ours
 
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