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ok i've been warned at the track already, how should i run the wires 'cause i don't think the instructions that came with the switch to just interupt the pos batt cable with the switch will be adequet? do i just also run the alt batt wire back to the switch then back forward to the factory batt term on the firewall to basically interupt this circuit with the switch as well? again, sorry i'm a bit thick on this

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The easy way, with no relays required.....

Disconnect the factory alternator(heavy b+) output wire from the alt.

Run a heavy wire/cable from the alt B+ to the battery positive terminal in the trunk (or the SAME side of the switch that the battery positive is on)

In review....2 pole switch.
One side has the alt B+ wire, AND the batt pos on it.
The other side has the cable that goes up to the starter solenoid,(where the factory pos wire used to go)

It's really that simple.

No relays, only one extra wire, it'll shut the car off every time, and pass tech every time.

The rules state that electrical function must cease, and it all does.

Think of it this way. The car needs B+ to run.
The batt OR the alt can provide B+
By putting them both on the SAME side of the switch, you isolate them both from the rest of the car when you throw the switch.

The other benefit, your ammeter is now bypassed. no chance of melting anything.

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Exactly like I said above.