2500 RPM's

Ive read some posts in Stannet and a couple of other forums about running my 01 Cobra at 2500-3000 RPM's for long periods of time. Someone said (cant name em?) its very hard and excessive wear on the engine etc. I live in a smaller town and the speed limit is 25. I stay in 2nd at 2500-3000 RPM's throughout town and it keeps me at the 25-30 range. I go to 3rd and its moving it way up there and the snake is wanting to really go. Im running the stock 3:27's for now.... future is going to 3:73. Is it really wearing the hell out of my engine? I have noticed some power loss in it lately.

We moved up here to Wisconsin from Missouri several years ago and do go back quite often during the year. I was kind of concerned with the 4:10's due to the length of the drive plus if I dont find a used 03 or 04 sitting on the lot somewhere Im gonna get pissed and move towards the twin 57'mm turbos on this one. I dont think 4:10's would do good with twin turbos.