Aside from an oil change, a new pan, shift linkage, as well as radaitor flush, i haven't done much to my car. Before modding it i want to make sure everything is mechanically sound. The car has 130,000 k miles on it and i do not believe it has had its 105k service. I want to make sure everything is going to be reliable, should i just go ahead and do the 105k service (Water pump, timing belt, ect..) or should i just save up the money and get the engine overhauled I know this is more expensive but i want to make sure its running at peak performance before i do anything crazy to it. Any help would be appreciated.