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Yeah...I once tried to train a kid to flap a cookie sheet in front of my carb (force induction)....it's a long story and my lawyer says I shouldn't talk about it yet.

The switches...I have not used them myself...but I have seen a couple of cars at the sand drags who had them....I was wondering how well they would deal with moisture.

Thats a good question about the moisture. The switches themselves are in a sealed box, that I have since re-sealed just to be safe. All of the relays and electronics are in another unit. That will be mounted in dox behind the dash that I will make as water and dust friendly as possible. I do like the fact that you can have set each switch change its function by changing the dipswitch on the side of the unit.

Anyone have a wiring diagram for an old VDO tach with 4 terminals on the back? 12-,6-,+, and one more? I don't want to FRY the tach or pooch the ignition if I hook it up wrong!

For the record