since putting the post on here i have asked some questions else where and have indeed found that the T5 didnt have an prevision for a VSS. there are adaptors to suit a type 9 box which i cant see why it wouldnt fit on the T5 that if going to an electronic speedo would be perfect, aslong as it does fit the T5 (but cant see why it wouldnt).

thanks for your help tabetha but think i will just leave the fuel computer as the engine i am using can work without the VSS.

i am actually converting a 24v V6 BOA cosworth engine from the granada cosworth from using the rwd mt75 to using the T5 in my sapphire 2000e