If youve got power going into the coil and not out of it then it could be fooked, but still what loom and engine have you got in it coz ive just read that youve put a s2 dizzy in there and i'm not to sure if that could be the prob also!?!
Convertin a cabby is a piece of pi55 i rebuilt mine using s2 stuff so i had to change quite a bit to keep the s2 loom whole but providing you have every thing (I had a donor car so i knew every thing was ok) then its a stright forward job, where are you on the map dave??? Ive got a s2 s/s scorpion for sale!!