Suggestions on which plugs to go with

Hello all...

I am going to buy some new plugs for my '72 Duster 340. I am quite the novice here, so I was looking for a little guidance. The specs for my car are listed below. That's about the extent of what I know regarding the car's motor, trans and rear end. Suggestions for plugs? Anyone running a similar setup? Many thanks!

-Correct Vintage 340 block bored .030 over.

-TRW forged pistons & Speed Pro Piston Rings-Compression 11:1

-Mopar Performance Purple Shaft Cam P4120235

-Performance Electronic Ignition with chrome box and Accel Super Coit

-340 heads rebuilt with new Valves, hardened valve seats and 3 angle vale job

-Hooker Comp Headers with Jet Hot coating mated to 2.5" exhaust with cross pipe and Flowmaster Mufflers

-Holley 750 Carb atop Edelbrock Torker I| Intake manifold with K&N Air Filter

-Mechanical Holley Fuel Pump on engine as well as secondary Holley Electric

-Fuel pump located near fuel tank and operated by switch in cabin

-3 row radiator with overflow bottle and Mopar Performance Viscous

-3.23 gears (switching to 3:91 gears soon)

-11:1 compression

-Mopar 727-A automatic transmission

-3200RPM Stahl Speed Trans Specialty Converter

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