that could be a vvti 1j air flow or a very very late 1uz
what year is your 1uz
i dont think u can use many others
maybe a 7mgte
y would u even think about repining it are you running std ecu
then u need air flow to suit it otherwise u wont get far
at end of day buy the right one and u wont have 5 air flows lying around all wrong
the importers here in australia sell them for around 250 bucks
you can prob get one of a forum junkie here for less