Out of curiosity, will an engine (naturally aspirated or an FI motor out of boost) run noticeably different if it has "turbo plugs" rather than plugs more suitable for NA operation?

The reason I ask is because I have some TR6's I would like to put in when I do a top end build, but the turbo and tune may not happen for another few weeks or even months afterward.

 

Tr6's are only one step colder. You won't notice much difference if any at all.

 

I agree, you wont be able to tell a difference with 6's. Maybe 7s, definiately be able to tell with 8s.

 

Nope.. not at all..
i ran mine 3 years NA on the same ole TR6 plugs i ran with the turbo.. still got good gas mileage and all that good stuff.

now BR7EF's.. mine dont idle worth a crap with these plugs. Goin BR6EF or TR6 again.