E85 + Boost, what plugs?

I was currently running these https://www.summitracing.com/parts/ngk-4091/overview/ with about 10psi of boost. Then a very reputable performance shop said I should be running at least a 9 heat range if I'm boosted with a carburetor. I need to do some more research about heat range with carbs vs FI before I make the switch. And yes, that is way too much gap for forced induction. Tighten that up to .030-.032.