While I'm mapping I'm going to use coppers- they'll get destroyed if there's detonation instead of me destroying my pistons with iridiums. Once it's tuned I'm running Denso Iridiums (probably IK27's)- as for the gap...it'll stay whatever they come out of the box as (or I'll be buying new ones). Do you think that'd be ok? You're kinda my guru for these things.