how to adjust two barrel carb

Slantsix64 said
i use to have it around 10 atdc my motor had more power but bad on gas and i would get a leak on my head gasket and i would run hotter so i just put it to 0 and runs cooler and no more leak i feel like my motor has less stress on it

"atdc"?
It should be btdc.

Also, if you had a head gasket leak from changing the timing you have bigger issue's to deal with.