First off, welcome to the forum Tony.
I'm going to move your original post to somewhere that may get you better responses.
PHP can definitely get you running on your single shot injectors. It would be helpful to know what year your truck is, mileage, modifications, etc.
A miss......
That's likely something that cannot be fixed in the tuning primarily because a miss (especially if it's a rhythmic single-cylinder misfire) isn't going to be something tuning related but mechanical.
If you can, give us a little more information please!