Sone 303 Eng Better -

The phrase is not a product model. It is an aspiration. The good news is that the Sone 303 is a fundamentally sound engine—a reliable clone of legendary small block designs. The bad news is that it arrives from the factory detuned, choked, and restricted.

After applying the blueprint (Stage 1: jet, intake, exhaust, spark plug, synthetic oil), here is the measured gain: sone 303 eng better