Just out of curiosity, I know there aren't any aluminum small blocks but how much would aluminum heads, water pump and housing, and manifold reduce the weight of a SB?

I'm still leaning more towards a BB because I know I can lighten that thing to around 475 pounds with enough aluminum, and as someone else said there's no replacement for displacement. I just thought I'd entertain the idea of a SB as well. Then again though, it would be easier to find space for the power accessories, Classic Auto Air system, and XV engine bay brace if I went with the small block, nevermind it being easier to work on in the engine bay....ah, decisions, decisions.

All that being said, I don't want to get too crazy with the power on either of them, there's no traction or stability control in these cars like there is in the modern Challenger.