I didn't realize you were running a plenum spacer (and IM insulator too, correct?).
I'll be interested in the results of your next tank of gas as well.
Have you already done a "with&without" comparison on the IM insulator?
I've been holding off on re-installing my Ice-o-lator and would love to see some hard data on that...
Airaid CAI, Rx ported TB, Mace ported IM, JBA shorty headers, Richmond 3.73, Borla touring axleback, Hurst short throw, NH-SS fix, IDEALG clutch m/c, FE4 struts,ZL1 toe rods/springs, Spohn trailing arms, Pfadt Racing sways, Pedders radius arm & rear subframe bushing inserts, 2LT gauge pkg.TSW Nurburgs. IPF S/C