What benefits are there beside increased energy? I don't have a problem with my energy levels on my current regiment, I could do more exercise to burn more off.
I'll bet it's not optimal for significant strength gains.
I think it's possible, however, and it's really just a calorie math problem: if you require X calories per day to acquire whatever strength or weight gains you just need to be sure to hit that within 8 or 6 hours.
Which might be challenging, from a digestive standpoint.
I think I use about 3000 calories per day and can get that in two meals (implying a 16 hour fast) without any trouble, but when I do a 24 hour fast (implying one meal) I need to be careful and selective about that one meal ... and I probably go into a net calorie deficit over a 48 hour period as a result...
I'm not sure how heavy you are but those are already advanced (elite?) level lifts assuming you mean a 1300lb B/S/DL total. Since you must have been training for a number of years now you're probably going to struggle to get stronger if you're not on a caloric surplus. I'm not an expert though.