I bought a used single nozzle nitrous kit designed for a 5.0 mustang which came with a small jetting card.. my goal for now is 125 shot and it states the 59 nitrous jet should be used with a 37 fuel jet.. I searched and got a mix of answers, I also used the jetting calculator and it added up to a 157 shot.. this is a compu-car single nozzle "EFI 5.0 mustang" kit.. what jets should I be using for a 125 shot?

 

A quick answer is about .054-.056 for a 125 to the wheel shot and ~.029 fuel on a 58lb fuel system. thats a start.

Use http://www.robietherobot.com/NitrousJetCalculator.htm

its pretty goood starting point. its a little rich in general but somewhere to start.

 

On our single nozzle systems we us .057 N20 and .033 Fuel@55PSI to get 125rwhp jetting for reference.

 

Thanks for the good info I'm gonna have to buy some jets then..