I’ve been reading, but haven’t wanted to make a dumb*ss comment! lol though about it though! I am battling many similar decisions with my 81 square call mom 305 fantastic mileage and runs like a top, just doesn’t have tons of top and Power has a decent low end, for what it is. Have a vortec 350 Marine crate motor, that is carb to pan with all accessories , only has 20,000 miles, and has 300hp, and have a Vortech centrifugal supercharger set up for a small block, So many options….So I have definitely rattles around the same things that you have. And it would be nice to have more power, but a nice reliable daily is pretty nice the older you get! LOLActually at any age a good reliable daily it’s pretty awesome! You just appreciate it more the older you get! LOL Plus I already have a hot rod…lol