2018 Small Block Race...... join the Fun
I edited the original post to make it more clear.
Rule 3 is what is considered "worked" heads.
There is a penalty for worked heads in the penalty box.
- IF you ported them (at home or shop), even just "opening up the bowls", they are worked.
- IF you gasket matched them, they are worked.
- IF you cut them more the .010 they are worked.
- IF you installed larger valves they are worked.
Also, heads are placed in categories in the penalty box, just take the deduction for your heads.