If you installed the normal amount of fluid as usual and now you show too much on the stick then the converter is not full. The torque converter conteol valve fills the converter but you said you installed another valve body. And you said you had good cooler flow earlier in your post.

If you pull the trans check the converter. It's probably partially full - will give you exactly the condition you complain of.

Something's being missed, things are not adding up.