There are no syn free noodles on red day I'm afraid. The dried ones are free on green and EE only. The pre-packed ones have a small syn value on green as there is usually oil in it to stop them sticking. On red however the syn value will be high.
Tesco Fresh Egg Noodles, Thread, chilled 100g
2½ Syns on Extra Easy
Original 13½ Syns
Green 2½ Syns
Tesco Egg Noodles Dressed in Oil, chilled 410g pack
It tells you the amount in the details below. One is for 100g the other for the 410g pack. Depends which of these, assuming it was one of these, you had.