Spark plugs

I haven't fooled with a BB Mopar in a while, and as I get closer to putting my lo-buck 383 into my 67 Barracuda, I realized I need to find out what plugs are appropriate. My big concern is, not hitting the piston!

To help you fellas help me to pick a plug, the engine specs are: .030" 383, 9.8:1 comp, (calculated). Closed chamber heads, (milled to 75 cc's). Flat top, NO valve relief pistons, .020" negative deck. Peeking through a plug hole, the pistons appear quite cozy with the plug hole. What say ye? I have had good luck with Autolites if that matters. Thanks.