Ok so i have a 98 dakota 4x4 slt i did a 3.9 to 5.9 swap the truck starts and runs and run fairly smooth no erratic idle or anything but it seems to be running a little lean has the stainless headers turn a little red not like cherry red but just a little red i jave not got the fuel sync reset yet i did have the engine rebuilt so i know the fuel sync is off i was wondering if thos could cause it to run lean if thats off or do i have another problem