Slant six or v8 swap for use in a truck

I love the slant and the uniqueness, it also just makes my truck seem more ratty (which is what I'm going for) I have p235 75 r15 tires on my truck, and a A833OD with a 3.23 rear end. I can't remember what it is, I think a 9 1/4 axle. But the sound of a v8 can't be replaced, the power can't either but how much power do I really need. I've made up my mind I think tho, to keep the slant. It's an amazing engine that's already in it, has low miles, runs amazing and starts evertime. I've been around it in and out. I like the idea to mill the head and change the valves, but first I'm going to mess with the electrical bits and the timing.

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