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I've got a 69 Camaro RS/SS convertible with the original 350/300 + Turbo 350 Trans with a 3.07:1 axle ratio, non-posi, 12-bolt rear. Needless to say, it is not exactly a screamer. Thinking about changing to 3.55's. What do you recommend? By the way, the car has A/C if that matters. It is 100% stock and restored, just trying to get a bit more performance out of it. This seems like the best option without hurting it's originality. Thoughts? Thanks
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