gauge face ?

hey guys i just bought a new gauge face for my 98 zx2 . the origanal spedo. goes to 120 and the new one gos to 150 so all the numbers are crunched together and im making a good guess that my spedo. will not magicaly know lol..i was wondering how or if i can fix this ...any help and comments will be great...thanks in advance guys

It can be adjusted but it needs to be done at a shop.

thanks for your help...sounds like a pain and a bunch of money...i found another that will fit w/o all the hassle...thanks again