Are the plugs PFR8b's or something else (part number) ?

From what I know / have seen, Pfr7b is as cold as you need....even upto 300+ Kw.

If they're iridium anything throw them away!

What has this been Dyno'd at power-wise?

LOL at 7 RON points with octane booster..... It's probably lowering the RON of 98.

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[CENTER][SIGPIC][/SIGPIC][/CENTER]
[CENTER][COLOR=#ff0000]Built Ej207: Semi-closed RA Cases - Wiseco Forgies - Manley rods - BC 272 cams - GDA Heads - billet f/whl - Vi-pec - WbO2 - 800cc Yellow tops - TD05-20G - 409Hp ath @ 1.75bar on E85[/COLOR][/CENTER]