Setting timing on a 225??

my 1967 factory manual says with out C.A.P. 5 degrees B.T.C. with C.A.P. 170 5 A.T.C.....225 T.D.C.

That is just it ....1967 Service manual.....You are living in the past....

Go ahead set it at 5 degrees After top dead center and let me know how it works out for you...LOL

Mopars love timing......put as much in it as you can without pinging under hard acceleration and the performance will be the best it can be