What plugs to run

[Blackbird6]

Was wondering what spark plug you guys recommended for a 12.2.1 383 lt1 on spray. Eventually going to use meth and Going to work my way up to 250+ shot. Also what gap to run. I know its prob. going to need a pretty cold plug.

[TravisMcGill2000]

What heads are you running?

[Chopstix]

need to know cylinder head before making plug suggestions....there is a chart in the gas facts sticky