I'd use some MS109 for certain. No octane boosters for this guy. Those plugs do look like non-projected tip.
As far as RPM range....how far do you expect it to fall back between gears shifting at 6k? I'd hope it stays above 4000? Forgive me, I am a 4-speed guy so there might be some ignorance to what happens when a gear is missing.
No you are right (I am a 4 speed as well) the rpm drop is not going to be down to 3k, I meant on the initial hit I thought coming in sooner would be better but in the overall scheme of things your only gonna lose that 800 rpm once.
