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Spent some time with my machine shop this morning looking at my Alexander head. It came without rockers & shaft. But, what is puzzling is the ratio of the rocker. Whereas my roller rockers are 1.5:1, the rockers for the Alexander head, if done to original specs, would be c. 0.75:1. Giving less valve opening as a result of a given cam lift.
Am I missing something here?
Stock 948 rocker is 1.25:1.
Norm