Spark plugs after EFI conversion

bronccar · Mar 22, 2017

Going to be running 93 mustang efi on a 73 302.

Which plugs should I use? Something spec'd for the mustang?

Thanks!

bronccar · Mar 22, 2017

Nevermind, I guess it has to be for the bronco heads (reach is different)

B RON CO · Mar 23, 2017

Hi, when you go with electronic ignition you can open up the spark plug gaps to probably .045 if you haven't already. Good luck

73azbronco · Mar 23, 2017

Actually you need the plug for the ignition you are using, old points are a tighter gap, TFI/electronic ignition opened to about .043-45.

Rustytruck · Mar 23, 2017

Make sure your using a resistor plug.

bronccar · Mar 25, 2017

I think these are the winner...