Master Cyl / Wheel Cyl combo to maximize manual drum power

The biggest key to drum brakes starts with having the correct components, ie master cylinder, wheel cylinders, correct proportion valve. Once them demands are meant it is an absolute to have good drums,ie ones that are within spec, brake shoes that are installed correctly,( ie primary and secondary shoe, installed in the correct positions ) , properly installed and good working order brake hardware , and last but not least THEY HAVE TO BE ADJUSTED CORRECTLY. Leaving out just one of the before mentioned items will result in less then desirable to no brakes! I will likely get flamed for saying this but it is what it is.. there is nothing wrong with "correctly" installed and serviced drum brakes for your daily driver or for a street beater etc, what is wrong with them is when someone who has no knowledge or experience with them can not get them to function correctly, then they are deemed junk or "not up to par"! Yes they do require more attention then disc, but it is minimal. There is lots of good info on proper sizing out there as to answer your original question. A factory service manual would be of great value to you for proper set up and maintenance.