{"gt_parse": {"text_sequence": "d by a 351 cu bic-inch \"Cleveland\" V8 , produci ng 300 h p. While un changed in displac ement, the ne w engin e was an all-n ew design. The 390 was d ropped, with the 428 Cobr a Jet rem aining alongs ide the Boss 302 as the high-p erforman ce engines .Initiall y developed as a rebadg ed versio n of the M ustang, the 1967 Cougar recei ved its own body design from th"}}