318, made changes, no gain?

1)What carb are you running????
2)What was your mph?????
Your mph tells a lot about how your car is running.

The biggest problem you have is by far your 60 foot times.
3)Are you running slicks????????

For every tenth gained in your 60 foot,on average you gain 2 tenths on the other end of the track.
SO...If you can improve your 60 foot by,let's say 3 tenth's,it would be going over a half a second faster.
You should be running in the mid 13teen's.
Since you are running that .484 cam with a 4000 stall converter and also with 360 heads on a 318,there is only three things it could be that's killing your et.
NO SLICKS \\\ NO COMPRESSION \\\CARB IS SET UP WRONG