Spark plugs for Indy heads

I just put my new motor in my D-50 today. I still got to buy spark plugs.It is a stock stroke 360 with 12.25 to 1 compression ,Indy 360-2 heads,Bullit solid roller cam. What plugs are you running in your Indy headed motor? Thanks for any help.....

NGK r5671a-11 in mine

That seems like a cold plug.

I run autolite AR3933 plugs in my Indy headed small block

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That seems like a cold plug.

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It is...I didnt even know they made a -11.
too cold for a 12:1 engine.

Are you running flat tops or dome pistons?

I ran the 5672A-8s at 12:1 with flat tops and 5671A-8 with domes.