Looking to improve 60 foot

I’m sure its a RMVB? It takes mine 300. I pull it at 6000 and rpm crests at 6300 on my log. This is a RMVB that hits hard/fast enough to chirp my little tire in each gear. You can hear it in the video, a tiny “creak” sound. Just rounds off the peak just ever so slightly on the driveshaft rpm graph.