spark plugs for a 383

[prg machine]

What do ya all reccomend for this flavor: engine:::: 383, 9.5 compression with open chamber heads, MSD ignition, crane roller cam with 1.6 intake rockers and 2.02 valves. AirGap Edelbrock with a Carter AFB ( now Edelbrock) 750 cfm. Hedman 1 5/8 long tube headers, Flowmaster (or equivalent).
I was thinking, go to the parts counter and get a plug that a 350 with HEI used and good enough.

Now if you favor a different version or brand or what have ya please let me know.