Aod shifting ??????

[geno5.0]

Is it a bad Idea to shift a 91 gt Aod from first to second and hold second to 5500rpm??? I have a problem I just bought my car It has alot of mods about 330 hp or so 3.73s and a shift kit my problem is if it is just in Drive it only raps out 2nd gear out to 4500rpm and all my power is around 5200rpm. Now ? 2 when I shift from 1st to 2nd by myself I do it at about 5500 and it will sometimes hit 2nd for like a second and go right into 3rd I have droped it back down into 1 and it will go back into 2nd and I can hold it intul 5500 but I dont want to damage any thing. the tranny only has 45000 on it. And it feels solid and shifts hard you can tell it has a shift kit in it. One more ? does any one know why it is short shifting 2nd?????