Car runs the same

That seems like a lot for a big cube big block. It may have too much gear.
That's just it. The guy he just bought the car from lives approx 100 miles away and ran 5.80s with the same setup. He has the time slips. He called the guy. The guy told us what he did to make the car run 5.80s. It just want lol !! I was thinking about getting some o2 in the race fuel. Just to see what that would do