What engine setup (blown small or aluminum big)

Really? I thought when I priced out turbo kits they always seem to come up more expensive, though I think most of those may have been dual kits and not a single. I also got to looking at the weight numbers and found out an aluminum big block really isn't quite as lighter as I thought. Turns out it's only about a 100 pounds difference, which while nice, wouldn't be too hard to make up with just other aluminum parts. I figured I'd go aluminum heads either way and I would be putting headers on it (cast iron mainfolds on the 318 now), so I could knock off enough weight to get the BB down to SB size as it sits now. I just remember building an all iron 440 for a 69 Charger for my brother years back and it was so heavy fully assembled it started bending the engine stand bolts.