Pretty standard curve. That's right where I would expect it to be. Stock manual 4g VTEC & 5g ludes usually put around 165 to the wheels. What gear were you in for the run?
You could probably get a few more ponies and maybe a slightly better MPG by running a piggyback a/f controller like the Apexi VAFC to lean out the fuel a bit.
Dump the +4 plugs. I'm embarrassed to say I got suckered too - I don't know what I was thinking. It took about 2 months before one started to fall apart (ceramic seperated from the metal). Went back to the stock NGK platinums - couldn't be happier. Heard generally good things about the iridiums as well (both Denso and NGK).
