Hello, ive posted before here, i lurk around more then post. I dont have a 4.6 3v mustang but i do have a 5.4L 3v. My truck has a magnacharger and im boosting 9 psi. Now my question is, is 20 * of timing to high for 9 psi. It hits 20* around 5000 rpms.. (timing progresses with rpms not intant...