Clutch Fan Info

I shopping for a thermal clutch and fan for my 70 Dart (warmed over 360 magnum about 370 hp, no ac, no pb, ps, 3500 converter with a huge trans cooler in front of the radiator)

Ive got a 27 inch plus, 2 core aluminum radiator, a hi vol water pump, an ac water pump pulley for extra pump rpm s
no shroud yet

the distance from the tip of the water pump shaft to the radiator is just over 3 in

my question is, how close do I want to the fan to the radiator ?
Brooks, just to let you know, the distance from the clutch fins to the radiator and the distance from the fan to the radiator are different. The fan doesn't bolt to the front of the clutch, but back a good little bit, so you'll have room for the fan if the clutch clears......if that answers your question.