Cam Gear Drive?

I have a newer one in my 440 very stable but the whine is just too much next time I am in there it is coming out and getting a new roller chain in, Like stated it masks a lot of engine noises.

Would you say the gain is marginal if any compared to todays regular Rollar Timing Chain?
Engine will see some Nostalgia Racing, but mostly exhibitions runs. Nothing on the street.