This^^^^^If you are wanting the best placement, the car needs to be on corner scales, with the drive in place and then put the weight where the car wants it, and not where the magazines say to.
All engines in these chassis are offset to the passenger side. So many times, the added weight to the right rear isn’t needed, especially if you have some way to add preload to the suspension, like an adjustable traction bar like the Calvert’s, or a coil over suspension.
Of you have that adjustability, it’s better to make the car as neutral as you can and use the suspension to get the bite you want.