ET Estimates please

I have a fool proof method of guesstamacting stuff like this and never be wrong! Now hear me out... my guess is somewhere around 9 to 24 seconds I can almost guarantee you that in right! Haha I had a guy at work ask me how much power my engine was gonna make and honestly I have no clue I havent really thought about it in a numbers way. So I told him somewhat better 5 and 500 he just looked at me like I was an idiot, which I am...