I have a 69 Mach, 390 with ac, ps. Car was in boxes, fan is a 5 blade-191/4" fan. Currently using a 2" spacer, giving me 1/2" clearance from bottom crank pulley, from lower radiator hose, and about 3/4" from back of radiator. In addition, fan shroud can't be installed, fan hits it.
What is the correct size fan and should it have a fan clutch