Not a head to run out of box.
Need to have porting and valve job done at least a bowl port job.
Also dont run the plastic seals they come with get viton seals.

They have raised ports and need to have special headers inmost cars.

A drag carr might not if it has room from a tube chasis.

Special oil restictions need tobe fabbed so engine wont over oil the top
Edelbrock better out of box head for money.