Personnaly I prefer a stock like appearance. If it had a straight 6, keep it. If there was a V-8 under the hood, awesome. I think people get too wound up in sticking a crate engine in a truck that it didn't belong.
A real challenge is to take the straight 6 and make it out run a V-8. I'm not saying that my truck is the fastest on the planet, but I bet I could surprise some folks........
I like seeing the grins of folks who go for a ride or take it for a spin.