Like the title says, my car is running lean on cylinder 1. I am also getting pre-detination (I can hear the valves clatter under full throttle, even in second!) I am basically just stage 2 with cobb map, exhaust and uppipe.

When I accelerate, not even full throttle the power is not there, and at 4k it seems to just fall on its face. When I reset the ecu, the car ran fine. I have been doing alot more highway traveling lately, and see 80+mph daily. I am running 10w-40.

Is it possibly because I dont have a intercooler diffuser, and am putting the car under to much of a load at to low of an RPM? Maybe the 93oct here in TX compared to FL, is SH*T.

I could really use some suggestions. THANKS