whens the raf marham day mate as not far from me ,could pop down
Unless you are allowed on the base as a serviceman you won't be able to get on. All the runners and spectators had to have security screening beforehand.
If you are a serviceman then it is on Sunday 24th March. 
Such a shame as I am in Scotland, would have been a good day out. I know a few people who will be there on motor cycles. Also a friend has his R32 GTR @ Marham, 700 ponies worth of power!
You will do more than hold your own I reckon. Are they doing anything with the ring road? I know sometimes they make almost a 'track' from parts of it.
No, the ring road isn't used, there is a strict 30mph limit enforced around the rest of the base. It is basically a full speed run over the 1.5 mile airstrip.
Holding my own maybe an issue, there are a lot of Porsches and R8V10's going along with modified TTRS's.
Steve will be going in his Porker and it should have over 800bhp. It would have had over 900whp, but the turbos haven't arrived yet and time is getting on. It does 0-100mph in under 6 seconds!!