Magnum head porting for the beginner

Not a mystery, trust me. I just did a set of super stock SB heads with 10cc worth of epoxy in the floor to stay within the 165cc port volume (per NHRA spec) that flowed as good as the Mag port at 170cc plus and a larger 1.920 Int valve. Did I mention SB SS head has a 1.88 valve?
I have to be in a particular mood to read and hang onto this kinda thing. Might be some adhd along with my dyslexia. But this is one of the few posts that has helped me actually grasp the concept of porting. Thanks. I still won't do it, because I'd cut ahead slam in half with a grinder. lol