New guy question - '67 Barracuda fan shroud?

Hi
67-68-69 Had shrouds if equipped with HD cooling for A/c or tow package and HP engines.
The 67-68-69 used the same style shroud although the part# changes up for the years.(as far as I know, I have several on my cars 67+69). As said above in another post, get the fan blades about 1/2 to 3/4 close to the rad to draw as much air through the rad instead of from around it, use appropriate spacers. As well the original shroud only fits the original round top rads with the holes to allow mounting. The repo these but $150 or so, used ones are difficult to find.