don't ruin that car with a 1uz. it will handle like garbage.
the cheapest easiest way to make power is to go gze, with a header and a pully you could get 160-180 wheel hp on the stock blower. an n/a 16v build will get exspensive, i already have over 2 grand in a built 16v in the just the head and bottom end. not worth it imo. gze or gze turbo.

and make sure its not the gear in the tranny, those go bad all the time, speedo cable's hardly ever go bad.