How much rise and pullback can I put on my Heritage without changing the stock cables and brake line?

 

I'm inclined to say 'not much' but may be wrong.
Reason I say that is when I checked the book, my fatboy had the same numbers on the cable parts as the heritage, and when I went to heritage bars from the low fat Fatboy bars, with the standard risers, it was all she could do to stretch those cables up there.. Now unless theres more hiding under the tank, I'm sure I've reached my max.

One experiment you could do.. take off the mounting bracket and lift the bars to see how much play you have.

 

just put apes on my standard everything will or can be made to reach except
throttle cables no extra there at all.
measure what you have and go to hd
there book will give lengths of other stock cables I actually got to much
have fun oh by the way lots of tye wraps all over the place.