i have a 90 celica gt with the 5sfe motor. the motor has 287,000 miles on it. i already have put about $3500 into. should i get a 3sgte turbo motor swap done??? and does anyone know how much its gonna cost to do? or if it is hard to do?

is going to cost you more than 3.5k that is for sure.

you can get a 3SGTE for about $1,300, but as far a finding some one to put it in for cheap is up to you

do you think it is worth it?

its more than just geting the motor, numerous sensors and stuff....ill post up a page about it