Sneaking in without a roll cage

Using Wallace calculators, with a 3400 lb car, 200 lb driver, and 600 hp, mid tens are possible. But I think that's with optimum gear and converter. With your soft gear, and tight converter, a decent 60 ft on fairly small tires could be difficult. And the first 60 is where e.t. is made.
I think I would expect low 11s first time out, somewhere around 7flat eighth.
I could easily be very wrong..... in either direction, lol.