1995 Corrolla - Late Shifting Problem

Hey guys, i have a 95 corolla (auto trans) and recently done the water pump and timing belt. All went well there, but since i done that whenever i drive it it shifts extremely late when at wot, and seems to be using much more gas. It seems that i have disturbed something when i removed the starter, if yall have any ideas i sure would appreciate it, thanks in advance.