Production turbo header. big block A body. any interest?
I had the Houston R/V turbo setup on a 400 in a 71 Polara. I used a crossover and the modified passenger ram horn manifold that had the turbo flange welded above the center ports. It was a pretty clean setup but no way it would fit an A body. Maybe if the turbo flange was moved to where the alternator would normally be.