Distribution block change?!

With 295s in the back and 235s in the front, my car needs no proportioning at all.
If you have 275s or more in the back, and 245s or less in the front;
Then you can achieve adequate proportioning in the back, with just swapping wheel cylinders and/or, you
MAY NOT NEED,
any proportioning at all. I would at least test it without, else you may go to the trouble and expense of installing a standalone adjustable valve........ just to end up running it, wide-open.