Spark plug and timing recommend

I just finished the break-in run on my 431ci 340 based stroker.
It's a Bloomer kit,12.3 compression,max ported Eddy heads(not big mouth) Victor intake,
1 7/8 TTI race headers,Pro Systems 1000 cfm carb,Lunati solid roller cam,4.30 Dana,110 race fuel.
It's a 1/8 mile bracket car.
I'm all new to the small block world lol always run big blocks in the past.
Started with Autolite AR 3911 plugs,timing @ 34 locked.
I keep reading small blocks don't like alot of timing