I dont think that I understood your question, my poor english...
But if I understood it correctly, you mean how long I used my previous novas, correct?

These are my first novarossis Actually Im a new racer.
I used to run Picco JL3s before, but now I want some reliable power.
I wish these engines will last about 2.5-3 gals with same p/s and bearings with top performance.