Stock Rocker Ratios
the stamped rockers are all over the place, the old iron 273 rockers are better, but they vary also. They can be corrected though, I have a few sets done by rocker arm specialties out of California, a set of blueprinted 1.5s and a set of 1.6s All they really do is move the adjuster location, and rebush them. Nice pieces but pricy for what they are.