They are both good, it totally depends on the application.
For this light car I think a SBC makes sense, and, these days the new SBC is the LS, however, the LS doesn't fit this old girl with the sidepipes and the sweet old body lines. So I am glad that he kept the 355, and I think the Stealth EFI fits it perfectly. I think I would treat the 355 to some aluminum heads and a hydraulic roller cam, but I like whatever Dave does with this thing and there's something to be said out of performance with stock iron heads, it's a a truly awesome car. The first time I ever saw it in person I was impressed, and I still feel that way to this day about that car.