Nice cam for my 273?

Have you done a compression check on your 273? If so, please let me know what you have. I only have around 110 on mine and I think whoever rebuilt my 273 HiPo put in
60 over standard pistons and a cam that is too big for the small motor. I advanced my
cam by one tooth to get the compression up a hair but still the motor won't ping no
matter how high I advance the timing. Don't know what size cam it has in it, didn't see
any marking on the cam when I advanced the timing by a tooth. From what I've read
I guess a lot of people put in too big a cam in this small engine.