Well after having some time to play around with the SCT PRP i received from Jusnes Modified & Bama Chips. So i finally went ahead and did some no-load data-logging with the MAF to see how my part throttle AFRs were. I have a drop in k&n w/ the silencer tube removed and the system was 10-12% lean at only 50% throttle. So that would put me at 16.4 AFR

I was 2 *points* off the ideal AFR 14.64 . What does this mean for other 4.6 owners with similar mods, nothing really. The computer will adjust, but it may take some time to fully understand it needs more fuel.

Normal operating spec should be within +/-5% (lean/rich).

Have a great day!
& now its back to tuning the little 4.6 that could...