Unless he’s after the very last .10 of a second for drag racing, I think a 3.50 gear would be a better choice. Then later on down the line when he goes to a turbo (well everyone else is doing it lol) he will still be good. When I was naturally aspirated, I never even felt like I needed to change out my 3.46 stock gears in my car with the same tire height as he had. Almost a 4000lb car that would have dipped into the 11’s if if would have been a little better weather. In my opinion, the gears I have are great for a driver. I actually wish I had 3.23’s or something close to that now that it’s turboed.