1995 3.4l Camaro drops rpm's and doesnt rev until almost flooring it.

What is your question?

Its shifts and drives fine. But when its going to shift from 3rd to fourth the rpms drop and starts jerking. When stepping into it the rpms will rise like you would expect it too, but drops back to almost idle. And jerk or cruise. I almost have a louder exaust so i can hear how it is suppose to shift and it gets quiter when the problem happens. Also, the rpms dont drop as freely as in the first 3 gears. It Will hold at 1100 rpms before it drops to 900-1000 when letting off. If im trying to cruise at around 50-55 mph i cant because that problem happens. I think its slipping or a misfire? If I power through it up to speed it will act normal and shift but only with enough throttle. If I get up to speed then try to hold it, the rpms will start to slowly drop then drop quickly at barely above idle, the start jerking. The jerking kinda slow when it does it but isnt consistent. In that range it will not get above 1100 rpms but will increase speed slowly. Does come back when flooring it

What makes this problem better or worse?

It doesnt grt worst but the same thing

How long has your 1995 Chevrolet Camaro had this problem?

3 months