The nearest peak and tune guy I know of is at the 49er truck stop off 80. For the life of me I cant remember the name of the city right there but I am sure google would have it. Its by that scandia miniature golf place. 680/80 I am wondering why you want your cb peaked and tuned since most guys dont need the longer range for trail rigs.
The guy there that does it is in the truckers parking lot area up front. Hes not the best but he does ok work.