86-87.5 Non-Turbo, low imp, 460cc, Square connector87-87.5 Turbo, low imp, 550cc, Square connector87.5-88 Non-Turbo, high imp, 460cc, square connector87.5-88 Turbo, high imp, 550cc, square connector89-91 Non-Turbo, high imp, 460cc, oval connector89-91 Turbo, high imp, 550cc, oval connector
