I was told that the stock cams in my 07 WG is a type of EPA pollution control cam. This a big factor of the engine heat. But if i install the 203 or 204 S.E. cams it would pull hard from 1800 to 5800 and run a lot cooler. Am thinking real hard on the 204s and the new S.E.R.T. pro tune . Any you tech guys got any feed back?