Iridiums are a good idea for forced induction...if you like pissing away money on plugs that really dont do any better than anything else and get too hot under boost.

Get the OEM plugs. Theres a reason Toyota spent money researching and came up with the stock plug type. These were high end cars back in the day...if they had iridium plugs back then and found them to work, they'd use them
The white fuzz on the bottom of the plugs mean that it is the wrong heat range also btw.