Fan, Shroud & Radiator - Optimal Spacing?

You should have the fan about half way into the shroud.

The fan about 1" away from the radiator is good. Close enough to be effective but far enough away in case the drive train shifts.
TY for your input. My next project will be a SB stroker for my 67 dart 2 dr "post". Will most likely need some real cooling power as I live in Phoenix! Any advice/lessons learned on your stroker? Cooling or otherwise?

69 FB cuda brings back found memories of my 68 383 FB cuda I drove in college. It was the same color as yours. Thanks again. Wayne