Kill switch for fuel or ignition?

[DEEPfrom1]

I take my keys out of the ignition at the track because they bother me, and occasionally they come out on their own. I want to run a kill switch in case I ever need to shut my car down in a hurry with out fumbling for my keys. Is it safest to run it kill the fuel or ignition?

Thanks all you smart ones!

[s13silvia123]

both.........................

[DEEPfrom1]

So just one switch that kills everything?

[RZRSHARP_240SX]

yes you have one switch to kill everything. use a 4 post racing kill switch

[codyace]

Kill ignition and alternator output. This will also cut your fuel as well, due to new electricity.

[DEEPfrom1]

Okay, Ill do some more research. Thanks for the input.