Wilren, when I get a chance I will pull the plugs and take some pics. I did pull all 3 front ones out and they were all a nice tan color. So, I can only presume that the rears are the same. I have stock AC Delcos in it right now and was thinking of dropping to a colder plug anyway. Just need to get the time to do it. I may just do that when I put the ER rockers in. But so far, I have not had ANY issues with my modded intake. The motor runs real strong and smooth and pulls like a b!tch for a N/A. Just ask Crash or Darrel
95 Bonnevile SE "In Da Works"
REBUILT L36 Fully Detailed-P/P heads-P/P LIM-Modified UIM-180 Tstat-Custom Front Header-Magnaflow Cat-A/C delete-Gutted Airbox w/ K&N-Sinister Chip
REBUILT 4T60E w/ H-D Conversion- 3.33 Gears- Phantom Grip LSD- TransGo JR Shift Kit- Adj. Vacuum Modulator- B&M Supercooler
2 12" 1250wt Infinity Reference Subs- Legacy 1200wt Amp- Pioneer 180wt 6x9'*- Infinity Reference 130wt 5.25"*- Pioneer Premier Headunit