My 422 smallblock build

what yr said
Once you determine the total duration you need for your application,
you set the opening point of the intake and the closing of the exhaust.

I posted this somewhere
UDHarold -designed the Ultradyne lobes held that the exhaust close was the place to start- then the intake open
exhaust you are solving reversion and exhaust makes a big difference- you want the exhaust going out the exhaust
which gives you when you can open the intake without reversion- you have to know what your low lift flow is when the exhaust is sucking and piston speed is up or slow
and rod/stroke does make a difference
go o around the other events and determine your seat= timing
that gets you to your duration which determines your rpm range
rpm range wrong- go around again
.050 is useless except to degree the cam