All I can say is that I found out through my 44 years of racing is it isn’t necessary. And I race a lot. I will see how the chain in my 4 year old low 9 second small block looks when I rebuild over the winter. Ohhh I never waste money on a tensioner either. I timed it on start up and haven’t had a timing light on it since as it’s still running exactly the same Ets 4 years later.
