Weekend started out good, ended early and not so good

Going from a low band apply valve body such as your A&A trans brake valve body, to a cheetah reverse manual valve body with no low band apply, could show slight ET improvement because the low/reverse band does not have to release when you shift from 1-2. In my dad's Hemi Roadrunner, we went from a low band apply A&A reverse manual valve body to a non low band apply A&A reverse manual valve body and saw about 2 hundredths improvement in the 60'. That is a 727 not a 904 but the valve bodies are the same. That was when his car was running 6.50s in the 1/8. Since we gave the car more power (5.80s in the 1/8), we have went with a low band apply valve body for the extra sprag protection. So it won't shock me if you gain a little bit from the valve body swap.