ok,heres the deal.i recently removed my throttle body spacer because its a piece of crap and would not allow me to reach full throttle,even with many adjustments.please dont ever buy one,at least a helix,they make noises and ruin crap.anyway.i finally got to hit full throttle after 6 months of hell,but the gears started to change late.after a day or two the gears wont change at all,and the rpms shoot way into the red.when i floor it from an idle everything shifts perfectly,but if i floor it when im already moving, the rpms shoot into the red and wont shift and the car makes a terrible noise.please help.everytime i have a shifting issue or acceleration problem people in forums or mechanics say,"damn your tranny must be going" or "thats gonna cost you a lot" but im tired of hearing that crap because it always turns out to be something inexpensive and stupid,and a new tranny should be the last resort for somthing like this.please help,thanks!

unplug your ecu and drive around again.... and make sure you didn't mess anything up with your throttle cable...

I'm assuming your car is auto...?
Are you getting any warning lights? If so get the codes pulled from the ECU.

well usually all cars nowdays come with rev limiters to protect the engine. u should be more scared about the engine valve floating than the tranny. high tranny speed wont really have much harm.