what size belt and where from?

[FD Dave]

i recently fitted a complete pulley set from dm motorsport including the replacement air pump pulley. Was wondering if i need to get a shorter belt as am currently using the air pump bracket to support the new pulley to take slack out of the belt.

If i do require a shorter belt where would be place to get one from? Any help is much appreciated.

[FD Dave]

managed to get one, for those of you who are intrested i needed a 5pk1220.