feul pump upgrade

i was wondering if it is worth changing my stock gas pump(si) to a b18 pump(i have a b18a and eventually vtec) since i am replacing the gas tank. or are they bacially the same pump? oh and does anyone know if the 90-93 teg pumps and 94+ are the same?
thanks

anyone got an idea?

"it is not worth your time."

well acctually it will save time casue i am gonna change the tank anyway. but i guess i will stay with the stock pump anyway.
thanks

Sometimes if im lookin into some parts to put on and see if they are the same ill goto the parts store and check both part #'s to see if they match if not then obviously their 2 different types of parts.