Ronnie789

Thanks all, will the engine run if the coils wire arse about, seem to remember from trade school that of would but that was a long time ago, memory is a bit foggy now. It's a six cylinder tacho so I think it might have been original, tried the trimpot and other methods mentioned on here to change from 6 cyl to 8 but still doesn't work. Just trying to decide it it's a wiring issue or the tach. Guess I could always run a wire from the coil neg straight to the tacho and find out that way.

Hey all, I've got an XD was 250 but converted to 351c, trying to sort the tacho wiring, everything seems to point to pink and blue wire to the coil negative, but the pink and blue wire is on the coil positive. does that seem right. Engine is from 77 Fairlane but has electronic ignition, not sure if that's original or has been grafted in somehow. the whole engine and trans wiring job is pretty average, not sure what's been hacked and what hasn't. Thanks