Ok i have an 82 280zxt,i have to prime it like 3 times to start it,when it starts
it does nothing but sputter and backfires from the exhaust and intake,and if i hold the gas to the floor it won't go above 1k rpm and if i back off to about 1/4 throttle it will sometimes rev to 4k rpm and will sound like it is running normal,also after awhile the exhaust will glow red hot.
i replaced the fuel filter and cleaned the fuel injectors and fuel rail.