The IRIAF had placed orders for 140 F-16's and a follow on option for another 160 at the time of the Iranian Revolution.
With the arms embargo, they weren't delivered but did end up in the region - they were bought by Israel
There were 4 AWACS as well! After the regime took power, they have cancelled all military orders, stating 'we don't need warfare'. The AWCS were sent to KSA AF , AFAIK.