tranny help! PLEASe
 

ok guys and gals! i am having a problem with my tranny right now! first things first i am getting ready to swap it over soon. i mean really soon! i took the car out yesterday just for a spin around the block but for some reason it takes off fine 1st is good 2nd is fine, when it gets into 3 it take a while for it to grab its almost like its going into N then it shift and jerks around, once it gets in to 3rd it take a while for it to drop into 4th. what can i look for? what other things can i check out? fluid is new and it seems fine. could it be to little fluid in there? please let me know! o and this is an lt1 motor with a
4l60e tranny