340 or 318 turbo

My first turbo kit had manifolds like that. Mad Dart is right the difference between a 318 and a 340 under boost is minmal. Cali, what turbo is that? Do you have a part number or specs?

A blow through carb is the way to go for cheap thrills. You need to be really careful with the tune up while running a hat on a carb, like the one pictured earlier in this thread. I have found that a carb running a hat will need staggered jetting to avoid a lean condition in one cylinder. Another consideration is using a single plane intake for better air management.