Mine started missing one day and the computer was showing that it was only charging at 12.3 volts. It was also showing which coils were misfiring.
A new voltage regulator got it back to 14+ volts and all is well.
I run one on a basically stock 05 5.7 with a XFI273 cam and headers.
I haven't had the time to move timing around to find the best setup.
I started with 12 degrees initial and ramp it up to 26 total by 3000.
Map is 0. I don't care about driveability at this point.
Thought it would be a safe...
Some food for thought.
Every published dyno numbers I have seen, have had the peak torque numbers at about 5000 rpm.
If you plan on leaving it stock ,then use a stock tight converter.
If you are looking for low et's, see above.
So far I've been 11.83 112.89 with a 5.7 out of a 05 300. Comp XFI273 cam and springs. XV Intake with 750 Holley, TTI Headers 727 3800 converter. 4.10 rear. 2107 DA. Through the exhaust with drag radials.
71 Demon