Advancing stock cam in a 360?

Dan the man said
You made a good point but chances of a factory cam having any advance already ground in it are slim

It was figurative, to prove a point.

Dan the man said
Good question. If the cam already had 4* ground into it and then it was advanced another 4* for a total of 8* wouldn't that cause the intake valve to close that much sooner? I'm just asking I'm not saying it would

Maybe. You’re recommending it so show us the results from your testing. I’m saying there are diminishing returns with regards to moving the cam that far.

Dan the man said
Being in california you should be familiar with emissions. When I was more into engine rebuilding, the stock cams usually had retarded timing because of emissions. And I still believe that the little things that can be done to improve performance all make a difference. Look at the performance that's been made with pure stock drag racing those guys have to use all stock parts and no cylinder head mods of any kind except milling

Yes, all to familiar with emissions testing. But I still wouldn’t go through the hassle of advancing a stock cam 2-4 degrees. I’d just put a different cam in it.