Ryan, In all honesty I think I am going to have to conciete that Otto is correct about the 372 being faster. The 440 just doesnt seem to rap out like the 372 does. Maybe its a break in issue or the carb is off, but its my gut that the 372 will beat it. BTW you should love that 066, just dont carry it too far. I ran a friend of mines once and it was the baddest saw I have ever touched.