13.20 at 105mph
LT1's will never make enough power to break a 9".
I'v got a LS1 Alum DS and it's holding up just fine.
Definitely bring that psi up to 18 and heat those DR's or slicks up and you'll be getting some good 60 foot times.
Oh and tune in that suspension(if it's adjustable)!
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I'd spend that money and effort elsewhere and you would see bigger gains.
I ran 13.3@105 in 3000'DA bolt on 6spd and a terrible 60' you have more in there!
I have an S60 and I just ordered a set of 4.30's for mine and my car is an m6 so in 6th gear my final drive is 2.15.





