10" or 11" brakes?

KosmicKuda said

11" drums are heavy!!! I think the drums are close to 30 lbs each.That means you have to accelerate that mass to get the car moving. If you did an A-B test, your car would accelerate slower with the 11". Sounds like you are more interested in drag racing anyway with those different tire sizes.
Corner carving to me means more handling with not much braking. Unless you are going downhill or doing multiple maximum stops in a row.

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It does depend on what drums you use too. A lot of the 11x2.5" drums are finned, which makes them heavier. But it also makes them dissipate heat better, so it's a trade off. There used to be non-finned 11x2.5" drums available but I haven't looked recently. You'd have to be johnny on the spot with a stop watch to notice the difference unless you've got a stock /6. With a half decent 340 or 383 like the OP has you're not going to feel the difference in acceleration on the old butt dyno. My Challenger basically had a stock 318 in it, and even with 3.23's I never had an issue spinning up the 275/40/17's I had on it if I wanted to. I'm not saying adding rotating mass is good, it's not, but 10x2.5" vs 11x2.5" on the brakes isn't adding so much weight that it's immediately noticeable. The braking difference is noticeable though.