Valve body question

I have a 68 Dart GTS with a highly modified 360. This thing is a monster. The auto transmission has a manual reverse valve body.

The car was like this when I bought it and the guy that I bought it from used to race it.

I dont race the car, and really only just take it to cruises, so I'm wondering if there will be any problems if I just have a regular valve body put back in.