Hi. I have a lincoln mark 8 fan.... haven't hooked it up the way I want yet but it is currently hooked up so that it turns on full when I turn on the car.... The car is idling too high.... but I'll leave that for my other posts... with the fan running all the time... just sitting in my garage the temp gauge is about 3/4 of the way up. I think 200 degrees is about half way... I still have the original 2 row rad.. Do you think I need a larger rad.. or is my 180 degree thermostate cycling too often... and not giving the fan enough time to cool off the fluid... Just running with water because I just put the fan in. Do you think I should put the 192 thermostate in too give the fan a chance to cool off the fluid before it cycles... maybe it is cycling too often with the 180.. I have read almost everywhere that the lincoln mark 8 fan is one of the best fans around?? Strange.... My car is idling awfully high... but like I said I will keep that for my other posts... Any ideas about the overheating?