wierd speed problem
 

k well the fastest the car will go is like 110, once i hit 5th gear and get to 100 it pretty much sits there at around 100. also compared to my other rx7s it feels as though the throttle response isnt the best, like if u press the gas pretty hard it doesnt accelerate that fast. any ideas? maybe the 3 cats and the exaust? fuel cut preventing speed? any help greatly appreciated!!! :)

there is another thread about this here:
https://www.rx7club.com/2nd-generation-specific-1986-1992-17/1991-na-topped-out-%40-110-mph-now-dont-look-right-doesnt-656530/

The consensus seems to be that you you should check your 5th and 6th ports and get a tune-up, but you can read it for yourself.