Tell me about the 5.3 for a 68 Camaro.

[Rileys68Camaro]

I'm researching this pretty hard as I really want a FI engine, but can't do an LSx, and I want something newer and better than an LT1. I have a GMPP 300hp crate but I need a carb and all the fuel system and such, minus tank.

If I can get a good pull out with transmission and wiring I think I'll be money ahead. However, I don't see much about the 5.3 as it's usually a truck engine and not a high power one at that, compared to an LS.