the AEM Tru-power pulley sizes are as follows for a h23/h22 engine

pwr steering- 5.25" dia, a 4v grove belt will fit Bando belt #4pk1065


alternator- 4.125" dia, a 5v grove will fir, with A/C Bando belt#5pk1100

if you wish to discard of your A/C system and eliminate the pulley drag on the engine you can use the NAPA belt #050385 V-ribbed belt, it fits perfect with the AEM tru power pulley and the crank.

Hope this helps you