I have looked into lowering the alternator and the opportunity to lower the CG especially of that heavy ass 4g alternator is enticing but my block doesn't have the threaded boss that this one is mounted to. Of course it's no problem fab a mount that bolts to the head to get that lower mounting point. I'd prefer to have that engine, if I'm right that's a Boss 302!
I have found a shorter barb to replace the long one I have that I'm going to try to use with my existing set up but I believe that it will put the radiator hose up against the backside of my current alternator bracket right where the tensioner bolt goes thru. I've also found a threaded 45 degree elbow that I've ordered that would move the outlet enough to provide clearance but it may be to weak for my use.
One way out of this is to ditch that bracket and go with something the style of the March system, where the tensioner is the top link and the bottom is your pivot. Then that link won't be in the way.
Since you lack additional bosses on the block, you'd have to do this with a plate off of the head for the lower pivot. If you go that way, there's no law that says you have to run a heavy AF 3G alternator. I think the alternator on my Escort is roughly half the weight of the 3G I have on my Fox and the "HO" version of the Escort alternator is 75A. Seems like enough for a pylon punter? In appearance they're almost identical, but different physical sizes.