Brad, I can really appreciate your frustration with th Victor heads. After looking at the pictures of the combustion chambers on your heads, I realized that the ones on mine appear somewhat different on the quench side of the chamber. Is there a production design change over the years, or is this what you have developed. Just happened to realize the difference. Ran into similar problems with losing effective rocker arm lift, going to B3 geometry correction. Hughes 1.5 rockers actually effectively turned into 1.45 & 1.43 ratios. Valve scrub was now correct but had to opt for 1.6 rockers to bring valve lift back into perspective. They actually come in at 1.55 & 1.53. Had lost valve lift in another area, so it became a new cam or rocker decision.Cam reportedly perfomed very well in a different vehicle so I opted change rockers. I can feel your pain with these heads. It deffinitely wasn't in the brochure.I hope we both get to where we want to be ,performance-wise. Good luck!! Bill