Just curious, how do you anticipate to get more lift from the cam lobe by grinding it? You can definitely achieve more duration by doing so, but in order to get more lift you need to add material to your cam lobe and then reshape it. Are you by chance TIG'ing the lobes and reshaping them, or are you just working with what you already have there?
Scottie
This can work to increase lift profile by reducing base circle, but it is a real shot in the dark, and would be considered "a hack job" by most mechanics.
However, in India, this is the kind of thing that is normal everyday practice.
I used to be horrified at hearing stories like this from India, but after a while I got de-sensitized to it. Like the guy who cuts off the skirts of his pistons with a hacksaw, and welds up his chambers without having any clue about what kind of effects it has, and fitting pistons into bores without knowing what the clearances are, and stuff like that.
Apparently, there is no clue about what effect this is going to have on the piston or the valve springs(which are already insufficient for the stock application, much less getting more lift), what any of this is actually going to do to the engine, etc, etc.
When I read stuff like this, I usually just quietly disassociate myself from the thread.