By any chance did you disassemble and rebuild your distributor?

I'm not sure if it's the same for the 2.4L, but when I did that on my 2.6L, I found the dizzy wound up always a "half-tooth" off at best, no matter how I inserted it into the head. Inserted one way, I couldn't advance the timing enough, but pulling it out and reinserting it one tooth over, I couldn't retard it enough.

Eventually I realized the dizzy drive gear has an odd number of teeth, but the advance mechanism couples to the dizzy shaft with a pair of opposed pins, so if you reassemble it with the advance coupled the wrong way around, you wind up with the drive gear a half-tooth out of sync with the rotor, and the alignment mark is ~180° off.