Cam advice for more torque from 340

joec said
Your wrong, on overlap usually if the lifters are equal height it has no advance if the exh is higher its retarded if int is higher its advanced.Its not exact but close,usually about .004 thou per degree of adv., so intake higher by .016 to .020 about 4 deg adv.Most dont degree but it gives you a good rough idea.

I was generally agreeing with you....and I understand what you are saying. I am not so sure of the number of thousandths per degree as you ...... lobe ramps can vary so much, as well as the difference in durations for intake vs. exhaust will change this too.