my temperature guage (mecahnical) is fluctuating between 192-202 after it has been running for twenty minutes of driving. it seems to like staying right around 200 most of the time but will dip back down occasionally to 192 or so. i have all stock cooling parts still and they likely need to be replaced just because of age. given the amount of mods i probably need a larger radiator too. can someone tell me what may be going on with my car or am i just paranoid about the fluctuation? also is it bad for the car to run as hot as 202? thanks for any help and suggestions!