Hi, I have the above car, i did not build it although bit by bit I think I am re-building it. I have had it for 2 years and it's been relaible but some of the works a bit shoddy and I have spent a lot of time re-doing it. One thing was the dash Rev-counter didn't work and what they seemd to have done was cut the green wire at the cluster and replased that with 2 auxilliary guages in the centre console, one small RC and one coolant Temp guage. I always wanted to try to get eveything in the dash working. I got the fuel guage working last year and decideed to do the other 2 this year. It turned out I had a 4 cylinder RC, so on advice I bought a late model 6 cylinder one, fitted it and connected it to the cable for the aux RC and it worked but with the car running, when you switched the key off the engine still ran. I found that the coilpack was wired with live directly from the battery, so it was live all the time. I found this last year and was going to look into it, so I decided now was the time and I mocked up from the relay under the bonnet which controls the small RC and Temp guage to run the coil pack and I can now start and stop the car as normal. Generally the RC in the dash is OK but it does make some sudden dives to the bottom stop, not sure if that's something to worry about or just the possibly unstable connections in the mock up. I don't want to make it permanent though until I know I am keeping it and it's safe. I got some advice from Facebook but it's not very detailed and some of the wire colours are just wrong, so not much good. I did find out I have a EDIS6 module and I have done a bit of research into what that does, didn't even know it was on the car but you learn daily working on these cars. I am worried that connecting the RC outwith this system may be bad for the car, as possibly I have bypassed it and kind of made it run on the old Ford systems, can anyone advise, thanks on advance?