Well I’ve been reading all this post about ignition breakup at 15 -20psi and spent a good amount of hours reading and then trying things here and there. Well this is my problem it’s a 97 supra gte/w58 with an aem v2 with an sxe 366 ONLY doing 6 psi(STILL ON A W58). It will be fine in 2nd gear go up to 7500 no problem but when going in 3rd and so on it starts breaking up around 5800-6000k. I already replaced all six coils with new oems changed plugs twice one set gaped at .26 and the other set at .20 removed the hks dli since it didn’t do anything to fix the issue and maybe that was causing the issue(NOPE). Checked the timing, checked for boost leaks, also have new injectors. Now I’m waiting on a new crank and can sensors. I’ve been reading about going with 1zz coils but I don’t believe I need to do this only at 6psi. I also noticed that the longer the car runs the more noticeable the break up is. I’m using NGK BKR8EIX 2668 I was also thinking about doing copper plugs. Thank you.