Rocker arm measurements

I remember when I was buying my duster there was this really nice white duster with a slant 6 in it and I mean it was Primo. He wanted 3K for it and I had a $2,500 budget. I still offered him the 3K but some kid had called him ahead of time and was first in line. I kept on him but the kid finally came up the money and bought it. A year later it was for sale again and I talked to the kid and he had someone make a bigger cam for him? I said so you had the cam out and you put a different one in? He said no the guy didn't take it out he just welded on top of each lobe! He said it was badass and sounded great! I was thinking to myself oh my goodness NOOooooo!!??
I knew a Guy like that, "well,...I rebuilt My engine last night".......:eek:!!!.......:rolleyes:...............