Highest LIft cam with 68 340 with stock intake and carb

Sorry I missed a few periods!!!
202 valve heads are holding it back?
Sorry, that was meant to be 1/2 joking considering you never mentioned your heads...and since there was almost no detail in the post I just took a stab in the dark that you probably had stock heads and a big-ole cam.

I really have no idea what the original post meant "With stock intake and carb, What is the highest LIFT cam you can get away with?"....Its kinda like asking.....With a 500hp motor, if I turn left what kinda of syrup goes on my pancakes.....

I'm not trying to be a poop, I just don't understand your question.