I am curious to hear, I’m liking the idea of picking up a gt350r and going 4.56’s, and e85. Regardless if it only ran 100mph (obviously it would do 125) in the 1/4 mile, I’d be building it to be a back road euphoria machine.
I like the new gt500 a lot but I love driving a car in canyons and twisties, and I want to do a very fun NA build on a gt350r and whittle it down to sub 3500lbs. I want close short gearing and and a rev happy fun playful car that eagerly goes where you tell it to.
The .70 6th is enough to however 2500rpm at 60mph on a 28” tire and that’s fine for me
I'd go bigger gear if they made a lower 6th gear for the 3160. 390's wasn't worth the hassle and 4.30's seemed a little crazy without lowering 6th. I'd love a .50 6th gear option to compliment a set of 4.30's.
On a side note, long trip from Tampa to Miami yesterday and did a 4th gear drop and rolled the tires over (with the stock 3.73s) in the rain. And that's with 325's out back. These cars have torque, you just have to be in the proper rpm/gear to wake it up.