[2fast4u]

hello ive got a toyota supra 1990 turbo 5 speed manual it backfires when i start it so it turns over and then bang it backfires out of the intake. i think it might be timing becuase i havnt adjusted my cps yet but i also think it might be the firing order. can somone give me the firing order from the left to the right on the coils that the spark plug wires hook up to. thaks i appreciate all the help