Ok here is a log from driving around today, I'm not totally sure what I should be looking for in here.

Also what plugs would you guys recommend for my truck?

around frame 712, 1723, 1785 is where it gets some KR

 

do you still have your rear o2s???? and are they "working"?

 

I really don't see anything way out of wack with the log. Fueling looks good (for nb) during the short pull. Trims aren't to bad and only saw one instance of knock.

I recommend NGK TR6's.

 

I still have rear O2s, don't know if they are "working" or not.

 

do you have a 2 bar map?? how long have you had the supercharger?

 

"working" as in you haven't tuned them out...... if you still have the rear o2s and they are working, i would think you can eliminate saying its the cats.

 

Got ya on the working, no I haven't tuned them out. I'm still running a MAF tune with the stock MAP sensor.

The truck has 65K on it, about 15k with the maggie, it gets driven hard. I noticed the flat spot at 5k last night when I was racing a TBSS and I was winding out 4th gear so somewhere around 120mph it stumbled and I had to shift into 5th.

I'll try some new plugs and see if that clears it up.

 

i dont know much about boosted applications but, shouldnt you have a 2 bar map. the reason i ask is everytime it knocks its in the 103 kpa range and almost seems as if its getting "maxed out".