need help with glow faces tach problem

ok i need help, i got a set of glow gauges for my 90 gs, but stupid me forgot to double check everything before i got them, i like them cuz theyre silver instead of the standard white but the only problem is that the tach face goes to 9k instead of 8k, do i have to swap in a gs-r tach or is there any special way to somehow change the speed the needle sweeps across the gauge so that it will match the new face. this is the gauge face set i got
http://cgi.ebay.com/ebaymotors/90-93-ACURA-INTEGRA-LS-RS-GS-EL-SILVER-REVERSE-GAUGES_W0QQcmdZViewItemQQ_trkparmsZ72Q3a1205Q7c39Q3a1Q7c66Q3a2Q7c65Q3a12Q7c240Q3a1318QQ_trksidZp3286Q2ec0Q2em14QQhashZitem310089492596QQitemZ310089492596

i did the same thing and the gauges fit your tach will just read slightly higher than your rpms really are

i know that but i want to read the right rpms, is there anyway to adjust the stock tach to read corectly with the new face or do i have to find a gs-r tach? cuz im not realy looin forward to spendin 40-90 bucks for $15 faces

you could always get a used cluster off ebay i’ve seen them on there for like 10-20 but as far as tweeking your tach there isn’t anyway i know to recalibrate it