A non-stock cam could have whatever "clearance ramp" the cam grinder chose to put onto the lobe profile. The only way to tell for sure is to use a degree wheel and a dial indicator, and plot the cam profile on a piece of graph paper. I've been doing that on racing cams for 50+ years to check the accuracy of the lobes, and/or check for wear on a used cam after the racing season is over.
Jerry
thanks ,,I am going to have to depend on what is on the door and set it like the guy before me said to do so .. not sure when I will do it .. but will come back and let you know .. I do hope the people who put the engine together did what you do to find the correct settings,,
