dusterbing the peace said 4.09x4.0, 13.6:1, 6k for torque/7.2k for hp, 2.15 valve Rod length is 6.125 (Chevy rods) Any provision for altitude? I’m up at 5,400, although our DA is usually 7-9,000. I’d love to see it too!!! Many thanks! Click to expand...