how fast will my 91 F-Bird go, it has 3.23 gears and the 4l60...?

faster than the speed limit is...

Barely...

just fast enough to get youi a licence loosing ticket.

Most top out around 120.

thanx, and i asked cuz im not willing to find out

you can find out by doing a calculation. my 2.8 does 115 with 3.42s but you probably hit 5500 rpms, in your 1 to 1 gear, divided by 3.23(i think thats what you said). that will give you your wheel rpm. then times (26 inch tires probably times 3.14) to give you feet per minute. times 60 for feet per hour. then divided by 5280 for miles per hour. its a long calculation but thats assuming you top your engine out in your 3rd gear(it won't shift into overdrive at WOT). i dont feel like calculating but i imagine thats about 125 to 130.