MSD Tach wiring

[Steve C.]

How does one wire the tach to the MSD box? Does it go directly to the tach?

Steve

[Brent]

Do you have a 6 box or a 7 box?
Are you just using the MSD elec dizzy without their box?

If you are using a 6 or 7 box the grey wire is the tach feed.

[Steve C.]

Thanks Brent. I have the 6. Do I connet the tach lead form the MSD to the number 34 gray wire that would normally be run to the coil?

Steve

[Master]

You are correct.