Another DCR/quench/cam overlap triangle question

mopowers said

You need to use the advertised intake closing event to get the DCR. The DCR or effective CR is based on when the intake valve actually closes, not when it's at 0.050". What's the advertised intake duration?

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It was late last night when I replied. I didn’t use .050, the Wallace calculator (Wallace Racing: Dynamic Compression Ratio Calculator) asked for “inlet closes ABDC”, which per my specs is 41. Doesn’t ask for advertised duration, which isn’t listed, only duration at various points..