before you buy any amp you should do alot more learning. if you dont kow what your dk is then start there.
I would look for or make post about.
Dead Key and how to adjust it.
SWR!!!!!! other ways known as reflect. and get a good meter.
how to properly ground your truck, which really isnt that hard to do an install on.
how to run the proper size wires.
coax type and length.