Engine bay tachometer connection?

[makepeace]

Hi all,

I'm tuning carbs and setting timing again. Something that's always been a pain is trying to do this as a one man job. I don't have the ear to tell what 950 rpm or 3500/4000 rpm is, and it's not possible for me to be in the driver's seat and adjusting ignition timing and carbs at the same time.

Is there any way to connect an external rev counter somewhere in the engine bay? Or any other good ideas?

Would appreciate any tips!

[USAndretti42]

You can buy ignition timing meters which also show the engine speed.

[ramjet]

That's what I was going to suggest as well. Very handy.