thankyou anyway buddy but i was looking for a more detailed answer. i asked this a month ago when i found this forum. but i found out what the difference is.i noticed alot of people read this question so i found the answer for you owners of 5.0EFI standart output/ non-HO motor
i cant give or no how to give the exact link so ill explain how to get to it.
Go to
www.foxthundercats.com
then go to thundercat links
then click thundercat related links
then scroll down and click Matt Naylors fox t-bird FAQ
then click any/either of the bottom 3 links marked
tbird11 or tbird145 or tbirdfaq
they all are simlar