GM Chevrolet Phase 2 bowtie small block sbc heads

Hi Craigslisters Nice pair of bolt on ready 14011034 phase 2 GM cast iron SBC racing heads. These have about 4,500 miles on them. They came off a 590 HP supercharged 383 with a solid roller cam setup. 600 lift. Springs and retainers are in excellent shape. No cracks, no issues. Just need some clean up a...