so i have a 1993 Chevy camaro z28, i rebuilt the motor (355 with hot cam, headers, etc) and trans its built, deleted vats, egr ,smog pump etc. the real question im after is how do i tune my speedometer for the new 373 gears i installed originally 273's i have tuner cats and new chips all the required stuff. cant figure out what part of tuner cat i use to change it any help would be great thanks in advanced.

 

For 93s you need to actually change out the speedomerer gear in the tranny or buy/find a Dakota digital box. 93s were a 1 off for many reasons. Most notably the transmissions. Two different 6 speed manuals and a non electronic automatic