How would you build a low 10’s street car

I would give you whatever I’m smoking if that was the case but I don’t smoke lol nor do I drink just a guy wanting to learn more about cars and engine builds only reason I said 2.91’s was for highway cruising, I’ve heard 7lbs of boost can double hp was thinking I could run up to 10 and still be okay maybe do it on e-85 to keep from detonation and keeping the higher cr to get my *** off the line and have the turbo put the power down from there

It's good that you're trying to think outside the box, but unless you get something like a new Demon, Hellcat, or Shelby, it's gonna be difficult to build a 10 second street car...

Then anything that can run 10 seconds is not going to get good MPG....