Automotive switch ratings?

[glennpm]

I had a running and starting issue this week so I'm replacing my Petronix II with a Bob Drake rebuilt 1942 crab distributor on my 59AB. I'm planning to add a ceramic 1.5 ohm inline with the coil's primary resistance of 2.3 ohm. I have a 12v negative ground wiring system.


Running resistance = 2.3 + 1.5 = 3.8 ohm


Ohm's Law I = V/R


I = ~12v/3.8 = ~3.3 amps


For starting I want to add a push button momentary switch so the coil will see about 5.5 amps when the ceramic 1.5a resistor is bypassed.


My question is the rating marking on a switch I have with these rating values acceptable?

6a 125 VAC
3a 250 VAC
3/4a 125v

What is the 12 volt rating. I need 5.5 to 6 amps?

Please teach this ME with EE knowledge :-)

Glenn