That was another one high on the list, the limited Slip 3.9 differential..That one sounds like a great investment. Although the 'tall' ratios I experience with the 4 speed are still pretty awesome. As far as the 292, the rough mornings don't sound too fun but the revs and higher horse are what I was looking for. How much better was the power? BTW, once I get the rebuild back on the road, I suspect it will blow me away stock..even before we tore it down, it ran great but was a mess inside.