Need to change my kia spectra fuel filter and can't find it. Need location of it.

Not knowing the year of your car or engine size, see if it looks like this:

http://shop.advanceautoparts.com/ProductDetail.aspx?MfrCode=PUR&MfrPartNumber=F44710&PartType=4&PTSet=A

Likely located along the firewall. If it's a different design, it may be located in front of the right rear wheel.