Offset master cylinder adaptor

clementine said
What does this offset adapter do? I havent had my car together (383 4 speed 67 barracuda) as it came in boxes. Easier to get the valve cover off? I thought it was a HEMI thing.....Thanks for the education. Sorry if Im hijacking....

raised port victor type, 440 heads in a 68 fastback , even had to mill the lower back part of the valve cover fin off.