Yeah, that was the first flag that I saw...
The second flag was that it only peaked at 5500 (come on, really?
!!!) and flatlined until 6500......with a 279/290 @ .050" camshaft....WAY too much camshaft for the cylinder heads.
Third flag was the use of solid roller spring pressures with traditional rocker stand mounting studs. After you see fretting under the stands, or even worse, pull one or two of the stud helicoils out, you switch to T&D race rockers (not street)...