The parameters change a bit when you move to carbs, so it should indeed be re-visited if you go that route. Having the engine/truck's objectives clearly figured out and in mind is important to that selection process. Will it be a daily driver? Maybe some off-roading? And so on....
OK on the crank; BTW, the journals become 'undersized' if they are turned down in diameter to clean them up. If you get the chance to post some good pix the 2 scarred journals, maybe folks will be able to help you evaluate.
