Well that's at least some good news for me bosswrench. I don't think the distributor will be a problem either, after all it's just a hall effect transistor with a magnet running around it. I actually think a lot of problems with electronic equipment that requires installation is due to shoddy workmanship and poor knowledge and understanding of the basics of wiring. Reminds me of a time early in my career when I built my first amplifier, ran fine on batteries but hummed like hell when I connected the mains source power supply. I sold it to my boss and he had it running in 5 minutes. All down to my lack of understanding of earthing and grounds. I've learnt a lot since those days.
Cheers
Ross