Stock cam 360 idles bad, dies in gear, fixed!

I think the compression is low and that with the somewhat more duration cam is creating less cranking pressure. This causes less of a pressure drop in the intake and some carbs do not like this type of situation. The idle circuit in some carbs need more of a pressure drop, The advanced timing is lighting the mixture which is not perfect that is why it needs more advance. The pressure spike is slow because of the mixture. More pressure drop creates better atomization, less drop causes large droplets which are harder to light. Look at the specs of some of the stock 360 pistons (sealed power cast is one eg) they are around .100 down in the hole. This cannot be good for moxture quality at idle. I somewhat agree with the lifter preload argument. Max travel shuld be kept under .030 with stock type lifters but excessive preload should not effect the idle too much. Oh well, just my .02 worth.