So, between the two running posts on these heads, here's what I'd use as a check list for new Trick Flow head purchasers
1. Get guide clearance checked and corrected as needed
2. Get valve seat contact pattern checked and corrected as needed
3. Replace titanium retainers, if equipped, with tool steel retainers for street use
4. Fill in stupid square holes in head surface with JB Weld

Nice heads, but not looking like "just take them out of the box and bolt them on" from what I see

Also
5. Buy ARP Edelbrock Victor head bolt kit (I'm not a studs guy)
6. Buy set of ten ARP "short" rocker shaft studs and hardware
7. Rockers? Not sure what I'd use at this point, but there's got to be a better option than a $900 set of Harland Sharps

Yeah, just my 2 cents