Hi there,
You dont say where you are located so I can only give a general answer...
I DONT KNOW !!! - lol - sorry but at least I know someone who might.
Check the treads for the big bore suppliers - they 'might' help out
However, my first suggestion would be be to ring Nelly at:
http://www.cornerspeed.co.uk If he does not know I'll eat my Diablos -
Good luck - Frank