Checkvalves

[Lolo La Torche]

Hi,


I have a "standard" HFS3 kit that I bought in 2014. So equiped with standard jets (no cheks valves).

I use 2 jets, 1mm and 0.9mm. 100% meth. PreThrottle injection.

I red several time on the forum that it's far better to have 1 checkvalve by extra jet. I still have the jets (supplied in the kit), what checkvalve could I use? Where can I find some?

Thanks!

Laurent