Iv got an acewell speedo and megajolt and cant the rev counter working.
can i use the rev counter from the megajolt/edis or do i need the wires from the coil feeds?

Iv got the circuit made up but thought id check before i rip my ign wiring apart.

I can't seem to get my rev guage working with any of the outputs! Tried the megajolt and the edis pack to no avail....Can't be bothered to do the two diode trick so I'm just using my shift lights for now! Oli.

I used the diode failed causing an intermittent misfire.
I couldnt get my rev counter to work with the edis or megajolt output but found that connecting it to the PIP signal from the edis worked. I expected it to cause problems with the operation of the unit but it hasent so have left it like that, may be worth trying if you get stuck.
Paul.