Weird SR Running Probem

[2plus4plus0eq6]

My car is an 89' s13 with a s14 sr20det. Just finishing my swap.

So anyways.. awhile ago I put some transmission fluid into my tranny. I had a good idea that there was probably too much in there, but I wasn't worried as I was going to remove the excess.

This morning the car was running smooth with the stock sr speed sensor in so I went ahead and switched it out with a s13 speed sensor so it would work with my speedometer. While pulling the SR out, ton of oil spilled out like I expected. The car was level in the garage so I waited til the oil pretty much stopped leaking. I assumed that was the perfect indication that there was the perfect amount of fluid.

I hooked up the speed sensor I just put in to the tranny harness and started it up. It sounded like shit and was running rough and smoking so I turned it off and thought maybe something was messing up by having the speed sensor hooked up so I unplugged it and tried again. Car still ran shitty like the time before.

Realistically the only thing that changed from when it ran smooth to when it ran shitty was the amount of transmission oil.

Do I need more oil??

Please let me know if my procedures are right with the transmission fluid leveling.

Thanks for any help.