Had a cam seize ( inlet right) which resulted in both left cam pulleys shattering. Luckily no damage to pistons/valves. New heads fitted along with all new gaskets, New pulleys, timing belt kit. But now I have an intermittent non start, she'll just crank over but won't fire. But I've found if I swap the two fuel pipes round, and try and start it. Then swap them back over again, she fires and runs fine.