Move one of the racks to third spot from the top. Preheat the oven to 350°F. Generously butter a 9x5 inch loaf pan. Make sure to drain the pineapple over a fine mesh strainer and squeeze out any excess moisture.
In a large mixing bowl, whisk together the flour and salt. Set aside.
In a small bowl, stir together the sour cream with the vanilla extract until smooth. Set aside.
In the bowl of a stand mixer, beat the butter, sugar, and baking powder on medium-high speed for 6-8 minutes to get it nice and fluffy. If you need to, scrape down the bowl to get any unmixed butter.
Over medium speed, add in eggs one at a time, stopping to scrape the bowl and beaters after each addition until completely incorporated, but being careful not to over beat the batter.
Add in the half of the sour cream and vanilla mixture and mix over medium low speed for 15 seconds. Then add in half of the flour mixture and mix for 15 seconds. Add the rest of the sour cream, beat for 15 seconds and the rest of the flour, beat for 15 seconds.
Scrape down the bowl and add in the pineapple, stir it a couple times by hand until everything is incorporated.
Pour the batter into the prepared loaf pan. Tap a couple times to release air bubbles then smooth the top with an offset spatula. To ensure the pound cake splits in the middle, wet a butter knife and make an inch deep cut into the cake down the length keeping a 1/2-inch on each end.
Place cake into pre-heated oven and bake for 60-70 minutes. Check cake through baking, before cake gets too brown, tent aluminum foil over the top. The cake will rise and split. Cake is done when a toothpick stuck in the center of the cake comes out with a few moist crumbs.
Remove cake from oven and allow to cool in the pan for 10 minutes. Let cake cool completely on a wire rack before cutting.
While cake is cooling, add brown sugar and pineapple juice to a small microwave safe bowl. Heat for 15 seconds, then stir. Heat for an additional 15 seconds and stir until brown sugar is melted. Brush on warm cake.
Make the glaze by whipping softened cream cheese in a stand mixer or with a hand mixer until smooth. Beat in confectioners sugar, vanilla, and 3 tablespoons of pineapple juice. Add more pineapple juice until you reach desired consistency. Drizzle or pour over cake.
Cool completely before cutting the cake.