I recently purchased my 1st samurai. It is completely stock other than the p235 size tires. On flat highway I have to really wind out 4th gear to get to 55, and then once i shift into 5th I normally cant maintain that speed. I live in eastern ky so that makes matters even worse considering that there arent any flat highways. More often than not I find myself wound out in 3rd gear (45 mph) trying to maintain safe speed on a small incline. Shouldnt I at leastbe able to maintain 55-60mph on flat ground? What is wrong with my Sami. It just doesnt seem to have the power it should.