Big question is whoever did the swap, did they retrofit the inline fuel filter inside the frame just forward of the left rear lower control arm? If so it will be a round filter, such as the one I posted in the pic below.
Was your hybrid originally a n/a car? If so originally the fuel filter would have been in the carb...on a turbo carbed car from '83 I'm not really sure.
Trace the hard steel fuel line from the tank back along the frame and see if the filter is inline or not. Also FWIW if they installed a fuel tank for a fuel injected TR (they're not the same as the ones used on the carbed Regals) there is a fuel sock in the tank.
HTH.