The other day I took my Mark 1 tiger out to test out blocked horn holes and my cooling. I went around 10 miles on the interstate at 80mph and it did not overheat for the first time in Three years at interstate speeds. I turned around and headed back to my house on the interstate. As I wound it through the gears thinking how much I appreciate Dukes tech info I noticed a piece of shiny metal fly by my windshield which seemed to come from under my hood. My hood pops up a bit at high speeds (another project for another day) I kept on going as the car was running fine. Looked it over when I got home saw nothing. Drove it yesterday and today and noticed some vibration and finally saw I had lost a fan blade. Could see where it hit the interior of the hood, but did not dent it, but it did bust the radiator which is now leaking. The derale fan I have on it was cut down to 14 inches by me and then balanced, something I would highly NOT RECOMMEND. Looking over my setup I have a fluidyne aluminum radiator 2.5 inches thick. The derale fan, and the fan pulley is 3 inches wide. I only have around .5 to 3/8 inch clearance from the fan to the radiator. I am not sure I can raise that engine and use the derale 15 fan without hitting the radiator. Also the fan cut off still comes above the radiator and am concerned that the stock fan will hit my hood. I have not been able to see my engine mounts to see if this engine has been raised already, but remember the stock fan hitting the lower crossmember when we put it on initially. My question is there another more narrow radiator that can be used, or another more narrow pulley. This is my 2nd fluidyne as I hit a low curb stop with my lower cross member a couple of years ago and put another derale fan thru the radiator. I called Dale's Restorations to see about his setup but got his answer machine. Thanks for all your help and input. "all of us are ignorant, just about different things." Will Rogers