Hey Ruebe! Guten Tag! That's great stuff. Nothing like having a motor that runs well. Gald to hear you sorted out the pinging issue.
Yeah, 2.7 gears are great for doing really smokey burnouts, but not the best for racing your friends in their BMW's!!
What is your peak rpm for making power? I can't remember if you are running a toploader manual or auto box??
At a minimum I would go 3.5 gears, but depends on what you want. The lower gears means you'll launch like a rocket, but your cruise rpm at 100km/h gets quite high. But if you don't do much autobahn driving then I would go low gears for sure.....maybe even some 4.11's if you are shifting up around 6000+ rpm. You won't believe the difference it will make to your engine working better and your car accelerating much faster.
I use a detroit locket on the street and they are very good. 2 wheels doing burnouts all the time! But I still can't get traction in most gears
At least I can keep straight with both wheels spinning..........1 wheel would be a hand full!