273/ 2 barrel camshaft options

The 'magic' 0.777 multiplier in the MP book is only for MP cams, not production cams.

If the lifters in post #44 are the ones used with the cam pictured earlier, then they need re-facing. Lifters can be re-faced 2-3 times. I see Oregon cams gets mentioned a lot on this forum for lifter re-facing, with positive comments.