Bigredginger

265/70/r17 all terrain

blue5.0

Those tires are certainly hurting you. Did you have that same wheel setup when you ran before the header install? I still think the time and mph are a little slow for your setup. FYI. I dropped almost a full half second in the quarter by running a 26" drag radial tire. They look a little goofy, well, a lot goofy but they were effective.

Bigredginger

Yeah same setup and I know they definitely are hurting me but I'm not going to crazy on this truck it's almost paid off and then I want a single cab short bed 2wd

Bigredginger

I also had almost a full 36 gallon tank and my spare still in the truck

18FX4SuperCrew

I truly believe with the vast difference in E85 at stations, investing in a checker is the way to go. I get anywhere from 85% to 60% and so I always fill at the station with the average higher octane. I also have misfire codes after installing my stainless works long tubes and it is a headache! Plugs retuned and still pops up as misfire immediately after start up and now it says misfire in #6 or #7 every other time it shows codes. Like I said brand new plugs and I reloaded my PBD tune and still periodic codes.