Once in my bracket racing past I ran all three tracks on almost consecutive weekends:

Sac 10.41
Fallon 10.98
Vegas 10.70

Sonoma one month earlier it went 10.38 FWIW...

I recall a 69 Bee in the ads with a 496, baby cam, stock 340 converter and 3.23's that claimed 11.90's. Seems very do-able with your 60' numbers.

Regardless...how fun. Road trip to Vegas, low 12's and road trip home!