So a "U" head is a T/A head! Thanks. I admit I have never worked with or even touched a T/A head. Is the only difference between an X head and a T/A head the valve guide angles. Like I said, I've never really messed with them.
The T/A head had the intake push rod moved and used an offset intake rocker. As far as I know all factory small block heads share the same valve angle.