Ok...I'll try to keep this short. Also, please keep in mind that this started all of a sudden with no changes or anything done to the car. I posted once before about my car blowing water out of the overflow. Alot of you gave me alot of helpful advice such as moving the fan closer to the radiator, installing a fan shroud, and installing an overflow tank, all of which sounds great and I will do. However, my car never overheated before and the fan spacing and everything else is still the same. The thermostat is only a few months old, and I even tried a new radiator cap. We went on a trip yesterday. It was only about 85. We were going about 70 mph and the darn temp guage was between half way and 3/4! In the past, it never hardly went past the first line (unless sitting in traffic), much less going half way....now it's up there at 70 and it's blowing water out! It's driving me NUTS!!!!! This is my only theory: The water seems to circulate VERY fast. So I think that the water pump is a high performance or something and too much for the stock 289. Either that or the impeller is slipping on the shaft at higher speeds. But still...it never did this before! Also, the car runs better than new...it's very smooth and very powerful (for a regular 289). There's no water in the oil or anything at all to suggest a cracked head. PLEASE HELP!